PRB Rapid Communications http://prb.aps.org/ Rapid Communications published in Physical Review B hourly 1 2012-02-10T21:06:12-05:00 rss@aps.org assocpub@aps.org 2012-02-10T21:06:12-05:00 en Copyright © 2012 the American Physical Society. Personal use only, all commercial or other reuse prohibited Copyright © 2012 the American Physical Society assocpub@aps.org Strain dependence of bonding and hybridization across the metal-insulator transition of VO_{2} http://link.aps.org/doi/10.1103/PhysRevB.85.081104 Author(s): J. Laverock, L. F. J. Piper, A. R. H. Preston, B. Chen, J. McNulty, K. E. Smith, S. Kittiwatanakul, J. W. Lu, S. A. Wolf, P.-A. Glans, and J.-H. Guo<br/><p>Soft x-ray spectroscopy is used to investigate the strain dependence of the metal-insulator transition of VO<span><sub>2</sub></span>. Changes in the strength of the V <span>3<span style="font-style: italic;">d</span></span>–O <span>2<span style="font-style: italic;">p</span></span> hybridization are observed across the transition and are linked to the structural distortion. Furthermore, although the V-V dimerization is well des...</p><br/><img src="http://publish.aps.org/images/icons/rapid30x30.gif" width="30" height="30" alt="Rapid Communication"/> <br/>[Phys. Rev. B 85, 081104] Published Fri Feb 10, 2012 Author(s): J. Laverock, L. F. J. Piper, A. R. H. Preston, B. Chen, J. McNulty, K. E. Smith, S. Kittiwatanakul, J. W. Lu, S. A. Wolf, P.-A. Glans, and J.-H. Guo

Rapid Communication Soft x-ray spectroscopy is used to investigate the strain dependence of the metal-insulator transition of VO2. Changes in the strength of the V 3d–O 2p hybridization are observed across the transition and are linked to the structural distortion. Furthermore, although the V-V dimerization is well des...

[Phys. Rev. B 85, 081104] Published Fri Feb 10, 2012

]]> Strain dependence of bonding and hybridization across the metal-insulator transition of VO_{2} J. Laverock, L. F. J. Piper, A. R. H. Preston, B. Chen, J. McNulty, K. E. Smith, S. Kittiwatanakul, J. W. Lu, S. A. Wolf, P.-A. Glans, and J.-H. Guo 2012-02-10T10:00:00-05:00 Personal use only, all commercial or other reuse prohibited doi:10.1103/PhysRevB.85.081104 Phys. Rev. B 85, 081104 (2012) article Physical Review B 85 8 2012-02-10T10:00:00-05:00 10.1103/PhysRevB.85.081104 http://link.aps.org/doi/10.1103/PhysRevB.85.081104 081104 Electronic structure and strongly correlated systems Electronic structure and strongly correlated systems Ground-state phase diagram of the quantum J_{1}−J_{2} model on the honeycomb lattice http://link.aps.org/doi/10.1103/PhysRevB.85.060402 Author(s): Fabio Mezzacapo and Massimo Boninsegni<br/><p>We study the ground-state phase diagram of the quantum <span><span style="font-style: italic;">J</span><sub>1</sub>−<span style="font-style: italic;">J</span><sub>2</sub></span> model on the honeycomb lattice by means of an entangled-plaquette variational ansatz. Values of energy and relevant order parameters are computed in the range <span>0≤<span style="font-style: italic;">J</span><sub>2</sub>/<span style="font-style: italic;">J</span><sub>1</sub>≤1</span>. The system displays classical order for <span><span style="font-style: italic;">J</span><sub>2</sub>/<span style="font-style: italic;">J</span><sub>1</sub>≲0.2</span> (Néel) and for <span><span style="font-style: italic;">J</span><sub>2</sub>/<span style="font-style: italic;">J</span><sub>...</sub></span></p><br/><img src="http://publish.aps.org/images/icons/rapid30x30.gif" width="30" height="30" alt="Rapid Communication"/> <br/>[Phys. Rev. B 85, 060402] Published Wed Feb 08, 2012 Author(s): Fabio Mezzacapo and Massimo Boninsegni

Rapid Communication We study the ground-state phase diagram of the quantum J1−J2 model on the honeycomb lattice by means of an entangled-plaquette variational ansatz. Values of energy and relevant order parameters are computed in the range 0≤J2/J1≤1. The system displays classical order for J2/J1≲0.2 (Néel) and for J2/J...

[Phys. Rev. B 85, 060402] Published Wed Feb 08, 2012

]]> Ground-state phase diagram of the quantum J_{1}−J_{2} model on the honeycomb lattice Fabio Mezzacapo and Massimo Boninsegni 2012-02-08T10:00:00-05:00 Personal use only, all commercial or other reuse prohibited doi:10.1103/PhysRevB.85.060402 Phys. Rev. B 85, 060402 (2012) article Physical Review B 85 6 2012-02-08T10:00:00-05:00 10.1103/PhysRevB.85.060402 http://link.aps.org/doi/10.1103/PhysRevB.85.060402 060402 Magnetism Magnetism Full configuration interaction perspective on the homogeneous electron gas http://link.aps.org/doi/10.1103/PhysRevB.85.081103 Author(s): James J. Shepherd, George Booth, Andreas Grüneis, and Ali Alavi<br/><p>Highly accurate results for the homogeneous electron gas (HEG) have only been achieved to date within a diffusion Monte Carlo (DMC) framework. Here, we introduce a recently developed stochastic technique, full configuration interaction quantum Monte Carlo (FCIQMC), which samples the exact wave funct...</p><br/><img src="http://publish.aps.org/images/icons/prbsugg30x30.jpg" alt="PRB Editors' Suggestion"/> <img src="http://publish.aps.org/images/icons/rapid30x30.gif" width="30" height="30" alt="Rapid Communication"/> <br/>[Phys. Rev. B 85, 081103] Published Tue Feb 07, 2012 Author(s): James J. Shepherd, George Booth, Andreas Grüneis, and Ali Alavi

PRB Editors' Suggestion Rapid Communication Highly accurate results for the homogeneous electron gas (HEG) have only been achieved to date within a diffusion Monte Carlo (DMC) framework. Here, we introduce a recently developed stochastic technique, full configuration interaction quantum Monte Carlo (FCIQMC), which samples the exact wave funct...

[Phys. Rev. B 85, 081103] Published Tue Feb 07, 2012

]]> Full configuration interaction perspective on the homogeneous electron gas James J. Shepherd, George Booth, Andreas Grüneis, and Ali Alavi 2012-02-07T10:00:00-05:00 Personal use only, all commercial or other reuse prohibited doi:10.1103/PhysRevB.85.081103 Phys. Rev. B 85, 081103 (2012) article Physical Review B 85 8 2012-02-07T10:00:00-05:00 10.1103/PhysRevB.85.081103 http://link.aps.org/doi/10.1103/PhysRevB.85.081103 081103 Electronic structure and strongly correlated systems Electronic structure and strongly correlated systems Structure of a 2^{∘} (010) Cu twist boundary interface and the segregation of vacancies and He atoms http://link.aps.org/doi/10.1103/PhysRevB.85.060101 Author(s): Enrique Martínez, John P. Hirth, Michael Nastasi, and Alfredo Caro<br/><p>A 2<span><sup>∘</sup></span> (010) Cu twist boundary is characterized by two sets of <span>1/2</span><span>〈</span>110<span>〉</span> screw dislocations crossing at misfit dislocation intersections (MDIs). Molecular dynamics simulations show that between MDIs, dislocations split into the two possible <span>{111}</span> planes that share the <span>〈</span>110<span>〉</span> direction, forming a constri...</p><br/><img src="http://publish.aps.org/images/icons/rapid30x30.gif" width="30" height="30" alt="Rapid Communication"/> <br/>[Phys. Rev. B 85, 060101] Published Tue Feb 07, 2012 Author(s): Enrique Martínez, John P. Hirth, Michael Nastasi, and Alfredo Caro

Rapid Communication A 2∘ (010) Cu twist boundary is characterized by two sets of 1/2〈110〉 screw dislocations crossing at misfit dislocation intersections (MDIs). Molecular dynamics simulations show that between MDIs, dislocations split into the two possible {111} planes that share the 〈110〉 direction, forming a constri...

[Phys. Rev. B 85, 060101] Published Tue Feb 07, 2012

]]> Structure of a 2^{∘} (010) Cu twist boundary interface and the segregation of vacancies and He atoms Enrique Martínez, John P. Hirth, Michael Nastasi, and Alfredo Caro 2012-02-07T10:00:00-05:00 Personal use only, all commercial or other reuse prohibited doi:10.1103/PhysRevB.85.060101 Phys. Rev. B 85, 060101 (2012) article Physical Review B 85 6 2012-02-07T10:00:00-05:00 10.1103/PhysRevB.85.060101 http://link.aps.org/doi/10.1103/PhysRevB.85.060101 060101 Structure, structural phase transitions, mechanical properties, defects Structure, structural phase transitions, mechanical properties, defects Giant negative magnetoresistance in high-mobility two-dimensional electron systems http://link.aps.org/doi/10.1103/PhysRevB.85.081304 Author(s): A. T. Hatke, M. A. Zudov, J. L. Reno, L. N. Pfeiffer, and K. W. West<br/><p>We report on a giant negative magnetoresistance in very high mobility GaAs/AlGaAs heterostructures and quantum wells. The effect is the strongest at <span><span style="font-style: italic;">B</span>≃1</span> kG, where the magnetoresistivity develops a minimum emerging at <span><span style="font-style: italic;">T</span>≲2</span> K. Unlike the zero-field resistivity which saturates at <span><span style="font-style: italic;">T</span>≃2</span> K, the resistivity ...</p><br/><img src="http://publish.aps.org/images/icons/rapid30x30.gif" width="30" height="30" alt="Rapid Communication"/> <br/>[Phys. Rev. B 85, 081304] Published Mon Feb 06, 2012 Author(s): A. T. Hatke, M. A. Zudov, J. L. Reno, L. N. Pfeiffer, and K. W. West

Rapid Communication We report on a giant negative magnetoresistance in very high mobility GaAs/AlGaAs heterostructures and quantum wells. The effect is the strongest at B≃1 kG, where the magnetoresistivity develops a minimum emerging at T≲2 K. Unlike the zero-field resistivity which saturates at T≃2 K, the resistivity ...

[Phys. Rev. B 85, 081304] Published Mon Feb 06, 2012

]]> Giant negative magnetoresistance in high-mobility two-dimensional electron systems A. T. Hatke, M. A. Zudov, J. L. Reno, L. N. Pfeiffer, and K. W. West 2012-02-06T10:00:00-05:00 Personal use only, all commercial or other reuse prohibited doi:10.1103/PhysRevB.85.081304 Phys. Rev. B 85, 081304 (2012) article Physical Review B 85 8 2012-02-06T10:00:00-05:00 10.1103/PhysRevB.85.081304 http://link.aps.org/doi/10.1103/PhysRevB.85.081304 081304 Semiconductors II: surfaces, interfaces, microstructures, and related topics Semiconductors II: surfaces, interfaces, microstructures, and related topics Exciton acoustic-phonon coupling in single GaN/AlN quantum dots http://link.aps.org/doi/10.1103/PhysRevB.85.081303 Author(s): Irina A. Ostapenko, Gerald Hönig, Sven Rodt, Andrei Schliwa, Axel Hoffmann, Dieter Bimberg, Matthias-René Dachner, Marten Richter, Andreas Knorr, Satoshi Kako, and Yasuhiko Arakawa<br/><p>Coupling of acoustic phonons to excitons in single wurtzite-type GaN/AlN quantum dots is investigated in detail by cathodoluminescence experiments and compared to theory. Numerical simulations of the coupling in the framework of the independent Boson model with realistic wave functions based on 8-ba...</p><br/><img src="http://publish.aps.org/images/icons/rapid30x30.gif" width="30" height="30" alt="Rapid Communication"/> <br/>[Phys. Rev. B 85, 081303] Published Mon Feb 06, 2012 Author(s): Irina A. Ostapenko, Gerald Hönig, Sven Rodt, Andrei Schliwa, Axel Hoffmann, Dieter Bimberg, Matthias-René Dachner, Marten Richter, Andreas Knorr, Satoshi Kako, and Yasuhiko Arakawa

Rapid Communication Coupling of acoustic phonons to excitons in single wurtzite-type GaN/AlN quantum dots is investigated in detail by cathodoluminescence experiments and compared to theory. Numerical simulations of the coupling in the framework of the independent Boson model with realistic wave functions based on 8-ba...

[Phys. Rev. B 85, 081303] Published Mon Feb 06, 2012

]]> Exciton acoustic-phonon coupling in single GaN/AlN quantum dots Irina A. Ostapenko, Gerald Hönig, Sven Rodt, Andrei Schliwa, Axel Hoffmann, Dieter Bimberg, Matthias-René Dachner, Marten Richter, Andreas Knorr, Satoshi Kako, and Yasuhiko Arakawa 2012-02-06T10:00:00-05:00 Personal use only, all commercial or other reuse prohibited doi:10.1103/PhysRevB.85.081303 Phys. Rev. B 85, 081303 (2012) article Physical Review B 85 8 2012-02-06T10:00:00-05:00 10.1103/PhysRevB.85.081303 http://link.aps.org/doi/10.1103/PhysRevB.85.081303 081303 Semiconductors II: surfaces, interfaces, microstructures, and related topics Semiconductors II: surfaces, interfaces, microstructures, and related topics Size-induced melting and reentrant freezing in fullerene-doped helium clusters http://link.aps.org/doi/10.1103/PhysRevB.85.060502 Author(s): F. Calvo<br/><p>The structural and dynamical stabilities of C<span><sub>60</sub><sup>+</sup></span>He<span><sub><span style="font-style: italic;">N</span></sub></span> clusters are theoretically investigated using global optimization and path-integral simulation methods. Up to <span><span style="font-style: italic;">N</span>=32</span>, the fullerene ion traps the helium atoms onto sixfold and fivefold faces, strongly enough to negate vibrational delocalization. Abov...</p><br/><img src="http://publish.aps.org/images/icons/rapid30x30.gif" width="30" height="30" alt="Rapid Communication"/> <br/>[Phys. Rev. B 85, 060502] Published Mon Feb 06, 2012 Author(s): F. Calvo

Rapid Communication The structural and dynamical stabilities of C60+HeN clusters are theoretically investigated using global optimization and path-integral simulation methods. Up to N=32, the fullerene ion traps the helium atoms onto sixfold and fivefold faces, strongly enough to negate vibrational delocalization. Abov...

[Phys. Rev. B 85, 060502] Published Mon Feb 06, 2012

]]> Size-induced melting and reentrant freezing in fullerene-doped helium clusters F. Calvo 2012-02-06T10:00:00-05:00 Personal use only, all commercial or other reuse prohibited doi:10.1103/PhysRevB.85.060502 Phys. Rev. B 85, 060502 (2012) article Physical Review B 85 6 2012-02-06T10:00:00-05:00 10.1103/PhysRevB.85.060502 http://link.aps.org/doi/10.1103/PhysRevB.85.060502 060502 Superfluidity and superconductivity Superfluidity and superconductivity Pronounced first-order metamagnetic transition in the paramagnetic heavy-fermion system CeTiGe http://link.aps.org/doi/10.1103/PhysRevB.85.060401 Author(s): M. Deppe, S. Lausberg, F. Weickert, M. Brando, Y. Skourski, N. Caroca-Canales, C. Geibel, and F. Steglich<br/><p>We report on the observation of large, steplike anomalies in the magnetization (<span><span style="font-style: italic;">Δ</span><span style="font-style: italic;">M</span>=0.74 <span style="font-style: italic;">μ</span><sub>B</sub>/</span>Ce), in the magnetostriction (<span><span style="font-style: italic;">Δ</span><span style="font-style: italic;">l</span>/<span style="font-style: italic;">l</span><sub>0</sub>=2.0×10<sup>−3</sup></span>), and in the magnetoresistance in polycrystals of the paramagnetic heavy-fermion system CeTiGe at a critical magnetic field <span><span style="font-style: italic;">μ</span><sub>0</sub><span style="font-style: italic;">H</span><sub><span style="font-style: italic;">c</span></sub>≈12</span> T at low temperatures. The size ...</p><br/><img src="http://publish.aps.org/images/icons/rapid30x30.gif" width="30" height="30" alt="Rapid Communication"/> <br/>[Phys. Rev. B 85, 060401] Published Mon Feb 06, 2012 Author(s): M. Deppe, S. Lausberg, F. Weickert, M. Brando, Y. Skourski, N. Caroca-Canales, C. Geibel, and F. Steglich

Rapid Communication We report on the observation of large, steplike anomalies in the magnetization (ΔM=0.74 μB/Ce), in the magnetostriction (Δl/l0=2.0×10−3), and in the magnetoresistance in polycrystals of the paramagnetic heavy-fermion system CeTiGe at a critical magnetic field μ0Hc≈12 T at low temperatures. The size ...

[Phys. Rev. B 85, 060401] Published Mon Feb 06, 2012

]]> Pronounced first-order metamagnetic transition in the paramagnetic heavy-fermion system CeTiGe M. Deppe, S. Lausberg, F. Weickert, M. Brando, Y. Skourski, N. Caroca-Canales, C. Geibel, and F. Steglich 2012-02-06T10:00:00-05:00 Personal use only, all commercial or other reuse prohibited doi:10.1103/PhysRevB.85.060401 Phys. Rev. B 85, 060401 (2012) article Physical Review B 85 6 2012-02-06T10:00:00-05:00 10.1103/PhysRevB.85.060401 http://link.aps.org/doi/10.1103/PhysRevB.85.060401 060401 Magnetism Magnetism Nonadiabatic switching of a photonic band structure: Ultrastrong light-matter coupling and slow-down of light http://link.aps.org/doi/10.1103/PhysRevB.85.081302 Author(s): M. Porer, J.-M. Ménard, A. Leitenstorfer, R. Huber, R. Degl’Innocenti, S. Zanotto, G. Biasiol, L. Sorba, and A. Tredicucci<br/><p>We map out the band structure of a one-dimensional photonic crystal while a 12-fs control pulse activates ultrastrong interaction with quantized electronic transitions in semiconductor quantum wells. Phase-locked multi-terahertz transients trace the buildup of a large vacuum Rabi splitting and an un...</p><br/><img src="http://publish.aps.org/images/icons/rapid30x30.gif" width="30" height="30" alt="Rapid Communication"/> <br/>[Phys. Rev. B 85, 081302] Published Fri Feb 03, 2012 Author(s): M. Porer, J.-M. Ménard, A. Leitenstorfer, R. Huber, R. Degl’Innocenti, S. Zanotto, G. Biasiol, L. Sorba, and A. Tredicucci

Rapid Communication We map out the band structure of a one-dimensional photonic crystal while a 12-fs control pulse activates ultrastrong interaction with quantized electronic transitions in semiconductor quantum wells. Phase-locked multi-terahertz transients trace the buildup of a large vacuum Rabi splitting and an un...

[Phys. Rev. B 85, 081302] Published Fri Feb 03, 2012

]]> Nonadiabatic switching of a photonic band structure: Ultrastrong light-matter coupling and slow-down of light M. Porer, J.-M. Ménard, A. Leitenstorfer, R. Huber, R. Degl’Innocenti, S. Zanotto, G. Biasiol, L. Sorba, and A. Tredicucci 2012-02-03T10:00:00-05:00 Personal use only, all commercial or other reuse prohibited doi:10.1103/PhysRevB.85.081302 Phys. Rev. B 85, 081302 (2012) article Physical Review B 85 8 2012-02-03T10:00:00-05:00 10.1103/PhysRevB.85.081302 http://link.aps.org/doi/10.1103/PhysRevB.85.081302 081302 Semiconductors II: surfaces, interfaces, microstructures, and related topics Semiconductors II: surfaces, interfaces, microstructures, and related topics Ultrafast pump-probe measurements of short small-polaron lifetimes in the mixed-valence perovskite Cs_{2}Au_{2}I_{6} under high pressures http://link.aps.org/doi/10.1103/PhysRevB.85.081102 Author(s): M. Trigo, J. Chen, M. P. Jiang, W. L. Mao, S. C. Riggs, M. C. Shapiro, I. R. Fisher, and D. A. Reis<br/><p>We study the ultrafast phonon response of mixed-valence perovskite Cs<span><sub>2</sub></span>Au<span><sub>2</sub></span>I<span><sub>6</sub></span> using pump-probe spectroscopy under high pressure in a diamond-anvil cell. We observed a remarkable softening and broadening of the Au-I stretching phonon mode with both applied pressure and photoexcitation. Using a double-p...</p><br/><img src="http://publish.aps.org/images/icons/rapid30x30.gif" width="30" height="30" alt="Rapid Communication"/> <br/>[Phys. Rev. B 85, 081102] Published Fri Feb 03, 2012 Author(s): M. Trigo, J. Chen, M. P. Jiang, W. L. Mao, S. C. Riggs, M. C. Shapiro, I. R. Fisher, and D. A. Reis

Rapid Communication We study the ultrafast phonon response of mixed-valence perovskite Cs2Au2I6 using pump-probe spectroscopy under high pressure in a diamond-anvil cell. We observed a remarkable softening and broadening of the Au-I stretching phonon mode with both applied pressure and photoexcitation. Using a double-p...

[Phys. Rev. B 85, 081102] Published Fri Feb 03, 2012

]]> Ultrafast pump-probe measurements of short small-polaron lifetimes in the mixed-valence perovskite Cs_{2}Au_{2}I_{6} under high pressures M. Trigo, J. Chen, M. P. Jiang, W. L. Mao, S. C. Riggs, M. C. Shapiro, I. R. Fisher, and D. A. Reis 2012-02-03T10:00:00-05:00 Personal use only, all commercial or other reuse prohibited doi:10.1103/PhysRevB.85.081102 Phys. Rev. B 85, 081102 (2012) article Physical Review B 85 8 2012-02-03T10:00:00-05:00 10.1103/PhysRevB.85.081102 http://link.aps.org/doi/10.1103/PhysRevB.85.081102 081102 Electronic structure and strongly correlated systems Electronic structure and strongly correlated systems Improving accuracy and efficiency of calculations of photoemission spectra within the many-body perturbation theory http://link.aps.org/doi/10.1103/PhysRevB.85.081101 Author(s): Huy-Viet Nguyen, T. Anh Pham, Dario Rocca, and Giulia Galli<br/><p>We present an approach to evaluate quasiparticle energies within many-body perturbation theory that substantially improves both the computational efficiency and numerical accuracy of existing techniques. We use the eigenvectors of the static dielectric matrix as a basis for the frequency-dependent d...</p><br/><img src="http://publish.aps.org/images/icons/rapid30x30.gif" width="30" height="30" alt="Rapid Communication"/> <br/>[Phys. Rev. B 85, 081101] Published Fri Feb 03, 2012 Author(s): Huy-Viet Nguyen, T. Anh Pham, Dario Rocca, and Giulia Galli

Rapid Communication We present an approach to evaluate quasiparticle energies within many-body perturbation theory that substantially improves both the computational efficiency and numerical accuracy of existing techniques. We use the eigenvectors of the static dielectric matrix as a basis for the frequency-dependent d...

[Phys. Rev. B 85, 081101] Published Fri Feb 03, 2012

]]> Improving accuracy and efficiency of calculations of photoemission spectra within the many-body perturbation theory Huy-Viet Nguyen, T. Anh Pham, Dario Rocca, and Giulia Galli 2012-02-03T10:00:00-05:00 Personal use only, all commercial or other reuse prohibited doi:10.1103/PhysRevB.85.081101 Phys. Rev. B 85, 081101 (2012) article Physical Review B 85 8 2012-02-03T10:00:00-05:00 10.1103/PhysRevB.85.081101 http://link.aps.org/doi/10.1103/PhysRevB.85.081101 081101 Electronic structure and strongly correlated systems Electronic structure and strongly correlated systems Quasiclassical and ultraquantum decay of superfluid turbulence http://link.aps.org/doi/10.1103/PhysRevB.85.060501 Author(s): A. W. Baggaley, C. F. Barenghi, and Y. A. Sergeev<br/><p>We address a question which, after a decade-long discussion, still remains open: what is the nature of the ultraquantum regime of decay of quantum turbulence? The model developed in this work reproduces both the ultraquantum and the quasiclassical decay regimes and explains their hydrodynamical natu...</p><br/><img src="http://publish.aps.org/images/icons/rapid30x30.gif" width="30" height="30" alt="Rapid Communication"/> <br/>[Phys. Rev. B 85, 060501] Published Fri Feb 03, 2012 Author(s): A. W. Baggaley, C. F. Barenghi, and Y. A. Sergeev

Rapid Communication We address a question which, after a decade-long discussion, still remains open: what is the nature of the ultraquantum regime of decay of quantum turbulence? The model developed in this work reproduces both the ultraquantum and the quasiclassical decay regimes and explains their hydrodynamical natu...

[Phys. Rev. B 85, 060501] Published Fri Feb 03, 2012

]]> Quasiclassical and ultraquantum decay of superfluid turbulence A. W. Baggaley, C. F. Barenghi, and Y. A. Sergeev 2012-02-03T10:00:00-05:00 Personal use only, all commercial or other reuse prohibited doi:10.1103/PhysRevB.85.060501 Phys. Rev. B 85, 060501 (2012) article Physical Review B 85 6 2012-02-03T10:00:00-05:00 10.1103/PhysRevB.85.060501 http://link.aps.org/doi/10.1103/PhysRevB.85.060501 060501 Superfluidity and superconductivity Superfluidity and superconductivity Resonance-hybrid states in a triple quantum dot http://link.aps.org/doi/10.1103/PhysRevB.85.081301 Author(s): S. Amaha, T. Hatano, H. Tamura, S. Teraoka, T. Kubo, Y. Tokura, D. G. Austing, and S. Tarucha<br/><p>Delocalization by resonance between contributing structures explains the enhanced stability of <span style="font-style: italic;">resonance-hybrid</span> molecules. Here we report the realization of resonance-hybrid states in a few-electron triple quantum dot (TQD) obseved by excitation spectroscopy. The stabilization of the resonance-hybri...</p><br/><img src="http://publish.aps.org/images/icons/rapid30x30.gif" width="30" height="30" alt="Rapid Communication"/> <br/>[Phys. Rev. B 85, 081301] Published Thu Feb 02, 2012 Author(s): S. Amaha, T. Hatano, H. Tamura, S. Teraoka, T. Kubo, Y. Tokura, D. G. Austing, and S. Tarucha

Rapid Communication Delocalization by resonance between contributing structures explains the enhanced stability of resonance-hybrid molecules. Here we report the realization of resonance-hybrid states in a few-electron triple quantum dot (TQD) obseved by excitation spectroscopy. The stabilization of the resonance-hybri...

[Phys. Rev. B 85, 081301] Published Thu Feb 02, 2012

]]> Resonance-hybrid states in a triple quantum dot S. Amaha, T. Hatano, H. Tamura, S. Teraoka, T. Kubo, Y. Tokura, D. G. Austing, and S. Tarucha 2012-02-02T10:00:00-05:00 Personal use only, all commercial or other reuse prohibited doi:10.1103/PhysRevB.85.081301 Phys. Rev. B 85, 081301 (2012) article Physical Review B 85 8 2012-02-02T10:00:00-05:00 10.1103/PhysRevB.85.081301 http://link.aps.org/doi/10.1103/PhysRevB.85.081301 081301 Semiconductors II: surfaces, interfaces, microstructures, and related topics Semiconductors II: surfaces, interfaces, microstructures, and related topics Plasmonic crystals for ultrafast nanophotonics: Optical switching of surface plasmon polaritons http://link.aps.org/doi/10.1103/PhysRevB.85.081401 Author(s): M. Pohl, V. I. Belotelov, I. A. Akimov, S. Kasture, A. S. Vengurlekar, A. V. Gopal, A. K. Zvezdin, D. R. Yakovlev, and M. Bayer<br/><p>We demonstrate that the dispersion of surface plasmon polaritons in a periodically perforated gold film can be efficiently manipulated by femtosecond laser pulses in spectral regions far from the intrinsic gold resonances. Using a time- and frequency-resolved pump-probe technique we observe shifting...</p><br/><img src="http://publish.aps.org/images/icons/rapid30x30.gif" width="30" height="30" alt="Rapid Communication"/> <br/>[Phys. Rev. B 85, 081401] Published Wed Feb 01, 2012 Author(s): M. Pohl, V. I. Belotelov, I. A. Akimov, S. Kasture, A. S. Vengurlekar, A. V. Gopal, A. K. Zvezdin, D. R. Yakovlev, and M. Bayer

Rapid Communication We demonstrate that the dispersion of surface plasmon polaritons in a periodically perforated gold film can be efficiently manipulated by femtosecond laser pulses in spectral regions far from the intrinsic gold resonances. Using a time- and frequency-resolved pump-probe technique we observe shifting...

[Phys. Rev. B 85, 081401] Published Wed Feb 01, 2012

]]> Plasmonic crystals for ultrafast nanophotonics: Optical switching of surface plasmon polaritons M. Pohl, V. I. Belotelov, I. A. Akimov, S. Kasture, A. S. Vengurlekar, A. V. Gopal, A. K. Zvezdin, D. R. Yakovlev, and M. Bayer 2012-02-01T10:00:00-05:00 Personal use only, all commercial or other reuse prohibited doi:10.1103/PhysRevB.85.081401 Phys. Rev. B 85, 081401 (2012) article Physical Review B 85 8 2012-02-01T10:00:00-05:00 10.1103/PhysRevB.85.081401 http://link.aps.org/doi/10.1103/PhysRevB.85.081401 081401 Surface physics, nanoscale physics, low-dimensional systems Surface physics, nanoscale physics, low-dimensional systems Quantitative x-ray phase nanotomography http://link.aps.org/doi/10.1103/PhysRevB.85.020104 Author(s): Ana Diaz, Pavel Trtik, Manuel Guizar-Sicairos, Andreas Menzel, Pierre Thibault, and Oliver Bunk<br/><p>X-ray ptychographic computed tomography has recently emerged as a nondestructive characterization tool for samples with representative sizes of several tens of micrometers, yet offering a resolution currently lying in but not limited to the 100-nm range. Here we evaluate the quantitativeness of this...</p><br/><img src="http://publish.aps.org/images/icons/rapid30x30.gif" width="30" height="30" alt="Rapid Communication"/> <br/>[Phys. Rev. B 85, 020104] Published Tue Jan 31, 2012 Author(s): Ana Diaz, Pavel Trtik, Manuel Guizar-Sicairos, Andreas Menzel, Pierre Thibault, and Oliver Bunk

Rapid Communication X-ray ptychographic computed tomography has recently emerged as a nondestructive characterization tool for samples with representative sizes of several tens of micrometers, yet offering a resolution currently lying in but not limited to the 100-nm range. Here we evaluate the quantitativeness of this...

[Phys. Rev. B 85, 020104] Published Tue Jan 31, 2012

]]> Quantitative x-ray phase nanotomography Ana Diaz, Pavel Trtik, Manuel Guizar-Sicairos, Andreas Menzel, Pierre Thibault, and Oliver Bunk 2012-01-31T10:00:00-05:00 Personal use only, all commercial or other reuse prohibited doi:10.1103/PhysRevB.85.020104 Phys. Rev. B 85, 020104 (2012) article Physical Review B 85 2 2012-01-31T10:00:00-05:00 10.1103/PhysRevB.85.020104 http://link.aps.org/doi/10.1103/PhysRevB.85.020104 020104 Structure, structural phase transitions, mechanical properties, defects Structure, structural phase transitions, mechanical properties, defects Spin dynamics in the frozen state of the dipolar spin ice material Dy_{2}Ti_{2}O_{7} http://link.aps.org/doi/10.1103/PhysRevB.85.020410 Author(s): L. R. Yaraskavitch, H. M. Revell, S. Meng, K. A. Ross, H. M. L. Noad, H. A. Dabkowska, B. D. Gaulin, and J. B. Kycia<br/><p>Low-temperature magnetic ac susceptibility measurements of single-crystal dipolar spin ice Dy<span><sub>2</sub></span>Ti<span><sub>2</sub></span>O<span><sub>7</sub></span> are presented. The relaxation is found to exhibit thermally activated Arrhenius behavior with an activation energy of 9.79 K (<span>∼</span><span>9<span style="font-style: italic;">J</span><sub>eff</sub></span>), which is not consistent with a simple scaling of <span>6<span style="font-style: italic;">J</span><sub>eff</sub></span>, as previo...</p><br/><img src="http://publish.aps.org/images/icons/rapid30x30.gif" width="30" height="30" alt="Rapid Communication"/> <br/>[Phys. Rev. B 85, 020410] Published Mon Jan 30, 2012 Author(s): L. R. Yaraskavitch, H. M. Revell, S. Meng, K. A. Ross, H. M. L. Noad, H. A. Dabkowska, B. D. Gaulin, and J. B. Kycia

Rapid Communication Low-temperature magnetic ac susceptibility measurements of single-crystal dipolar spin ice Dy2Ti2O7 are presented. The relaxation is found to exhibit thermally activated Arrhenius behavior with an activation energy of 9.79 K (∼9Jeff), which is not consistent with a simple scaling of 6Jeff, as previo...

[Phys. Rev. B 85, 020410] Published Mon Jan 30, 2012

]]> Spin dynamics in the frozen state of the dipolar spin ice material Dy_{2}Ti_{2}O_{7} L. R. Yaraskavitch, H. M. Revell, S. Meng, K. A. Ross, H. M. L. Noad, H. A. Dabkowska, B. D. Gaulin, and J. B. Kycia 2012-01-30T10:00:00-05:00 Personal use only, all commercial or other reuse prohibited doi:10.1103/PhysRevB.85.020410 Phys. Rev. B 85, 020410 (2012) article Physical Review B 85 2 2012-01-30T10:00:00-05:00 10.1103/PhysRevB.85.020410 http://link.aps.org/doi/10.1103/PhysRevB.85.020410 020410 Magnetism Magnetism Broadband cloaking of bending waves via homogenization of multiply perforated radially symmetric and isotropic thin elastic plates http://link.aps.org/doi/10.1103/PhysRevB.85.020301 Author(s): Mohamed Farhat, Sebastien Guenneau, and Stefan Enoch<br/><p>A cylindrical cloak is designed to control the bending waves propagating in isotropic thin plates. This is achieved through homogenization of a multiply perforated coating of isotropic homogeneous elastic material, which greatly simplifies the design of the multilayered cloak we proposed [ <a href="http://dx.doi.org/10.1103/PhysRevLett.103.024301"> Phys. Re...</a></p><br/><img src="http://publish.aps.org/images/icons/rapid30x30.gif" width="30" height="30" alt="Rapid Communication"/> <br/>[Phys. Rev. B 85, 020301] Published Mon Jan 30, 2012 Author(s): Mohamed Farhat, Sebastien Guenneau, and Stefan Enoch

Rapid Communication A cylindrical cloak is designed to control the bending waves propagating in isotropic thin plates. This is achieved through homogenization of a multiply perforated coating of isotropic homogeneous elastic material, which greatly simplifies the design of the multilayered cloak we proposed [ Phys. Re...

[Phys. Rev. B 85, 020301] Published Mon Jan 30, 2012

]]> Broadband cloaking of bending waves via homogenization of multiply perforated radially symmetric and isotropic thin elastic plates Mohamed Farhat, Sebastien Guenneau, and Stefan Enoch 2012-01-30T10:00:00-05:00 Personal use only, all commercial or other reuse prohibited doi:10.1103/PhysRevB.85.020301 Phys. Rev. B 85, 020301 (2012) article Physical Review B 85 2 2012-01-30T10:00:00-05:00 10.1103/PhysRevB.85.020301 http://link.aps.org/doi/10.1103/PhysRevB.85.020301 020301 Dynamics, dynamical systems, lattice effects Dynamics, dynamical systems, lattice effects Structural dynamics in FeRh during a laser-induced metamagnetic phase transition http://link.aps.org/doi/10.1103/PhysRevB.85.020103 Author(s): Florian Quirin, Michael Vattilana, Uladzimir Shymanovich, Abd-Elmoniem El-Kamhawy, Alexander Tarasevitch, Julius Hohlfeld, Dietrich von der Linde, and Klaus Sokolowski-Tinten<br/><p>Time-resolved x-ray diffraction with ultrashort x-ray pulses from a laser-produced plasma is used to study the lattice response of FeRh during a femtosecond laser-induced antiferromagnetic (AFM) to ferromagnetic (FM) phase transition. Pump-probe measurements at initial sample temperatures below as w...</p><br/><img src="http://publish.aps.org/images/icons/rapid30x30.gif" width="30" height="30" alt="Rapid Communication"/> <br/>[Phys. Rev. B 85, 020103] Published Mon Jan 30, 2012 Author(s): Florian Quirin, Michael Vattilana, Uladzimir Shymanovich, Abd-Elmoniem El-Kamhawy, Alexander Tarasevitch, Julius Hohlfeld, Dietrich von der Linde, and Klaus Sokolowski-Tinten

Rapid Communication Time-resolved x-ray diffraction with ultrashort x-ray pulses from a laser-produced plasma is used to study the lattice response of FeRh during a femtosecond laser-induced antiferromagnetic (AFM) to ferromagnetic (FM) phase transition. Pump-probe measurements at initial sample temperatures below as w...

[Phys. Rev. B 85, 020103] Published Mon Jan 30, 2012

]]> Structural dynamics in FeRh during a laser-induced metamagnetic phase transition Florian Quirin, Michael Vattilana, Uladzimir Shymanovich, Abd-Elmoniem El-Kamhawy, Alexander Tarasevitch, Julius Hohlfeld, Dietrich von der Linde, and Klaus Sokolowski-Tinten 2012-01-30T10:00:00-05:00 Personal use only, all commercial or other reuse prohibited doi:10.1103/PhysRevB.85.020103 Phys. Rev. B 85, 020103 (2012) article Physical Review B 85 2 2012-01-30T10:00:00-05:00 10.1103/PhysRevB.85.020103 http://link.aps.org/doi/10.1103/PhysRevB.85.020103 020103 Structure, structural phase transitions, mechanical properties, defects Structure, structural phase transitions, mechanical properties, defects Universal Néel temperature in three-dimensional quantum antiferromagnets http://link.aps.org/doi/10.1103/PhysRevB.85.020409 Author(s): Songbo Jin and Anders W. Sandvik<br/><p>We study three-dimensional dimerized <span><span style="font-style: italic;">S</span>=1/2</span> Heisenberg antiferromagnets, using quantum Monte Carlo simulations of systems with three different dimerization patterns. We propose a way to relate the Néel temperature <span><span style="font-style: italic;">T</span><sub><span style="font-style: italic;">N</span></sub></span> to the staggered moment <span><span style="font-style: italic;">m</span><sub><span style="font-style: italic;">s</span></sub></span> of the ground state. Mean-field arguments suggest <span><span style="font-style: italic;">T</span><sub><span style="font-style: italic;">N</span></sub>∝<span style="font-style: italic;">m</span><sub><span style="font-style: italic;">s</span></sub></span> c...</p><br/><img src="http://publish.aps.org/images/icons/rapid30x30.gif" width="30" height="30" alt="Rapid Communication"/> <br/>[Phys. Rev. B 85, 020409] Published Fri Jan 27, 2012 Author(s): Songbo Jin and Anders W. Sandvik

Rapid Communication We study three-dimensional dimerized S=1/2 Heisenberg antiferromagnets, using quantum Monte Carlo simulations of systems with three different dimerization patterns. We propose a way to relate the Néel temperature TN to the staggered moment ms of the ground state. Mean-field arguments suggest TN∝ms c...

[Phys. Rev. B 85, 020409] Published Fri Jan 27, 2012

]]> Universal Néel temperature in three-dimensional quantum antiferromagnets Songbo Jin and Anders W. Sandvik 2012-01-27T10:00:00-05:00 Personal use only, all commercial or other reuse prohibited doi:10.1103/PhysRevB.85.020409 Phys. Rev. B 85, 020409 (2012) article Physical Review B 85 2 2012-01-27T10:00:00-05:00 10.1103/PhysRevB.85.020409 http://link.aps.org/doi/10.1103/PhysRevB.85.020409 020409 Magnetism Magnetism Resistivity saturation in a weakly interacting two-dimensional Fermi liquid at intermediate temperatures http://link.aps.org/doi/10.1103/PhysRevB.85.041310 Author(s): Xiaoqing Zhou, B. Schmidt, L. W. Engel, G. Gervais, L. N. Pfeiffer, K. W. West, and S. Das Sarma<br/><p>We report an unusual temperature dependence in the magnetoresistance of a weakly interacting high mobility 2D electron gas (2DEG) under a parallel magnetic field and in the current configuration <span><span style="font-style: italic;">I</span>⊥<span style="font-style: italic;">B</span></span>. While the linear temperature dependence below 10 K and the exponential temperature dependence above ...</p><br/><img src="http://publish.aps.org/images/icons/prbsugg30x30.jpg" alt="PRB Editors' Suggestion"/> <img src="http://publish.aps.org/images/icons/rapid30x30.gif" width="30" height="30" alt="Rapid Communication"/> <br/>[Phys. Rev. B 85, 041310] Published Thu Jan 26, 2012 Author(s): Xiaoqing Zhou, B. Schmidt, L. W. Engel, G. Gervais, L. N. Pfeiffer, K. W. West, and S. Das Sarma

PRB Editors' Suggestion Rapid Communication We report an unusual temperature dependence in the magnetoresistance of a weakly interacting high mobility 2D electron gas (2DEG) under a parallel magnetic field and in the current configuration I⊥B. While the linear temperature dependence below 10 K and the exponential temperature dependence above ...

[Phys. Rev. B 85, 041310] Published Thu Jan 26, 2012

]]> Resistivity saturation in a weakly interacting two-dimensional Fermi liquid at intermediate temperatures Xiaoqing Zhou, B. Schmidt, L. W. Engel, G. Gervais, L. N. Pfeiffer, K. W. West, and S. Das Sarma 2012-01-26T10:00:00-05:00 Personal use only, all commercial or other reuse prohibited doi:10.1103/PhysRevB.85.041310 Phys. Rev. B 85, 041310 (2012) article Physical Review B 85 4 2012-01-26T10:00:00-05:00 10.1103/PhysRevB.85.041310 http://link.aps.org/doi/10.1103/PhysRevB.85.041310 041310 Semiconductors II: surfaces, interfaces, microstructures, and related topics Semiconductors II: surfaces, interfaces, microstructures, and related topics Shot noise induced by electron-nuclear spin-flip scattering in a nonequilibrium quantum wire http://link.aps.org/doi/10.1103/PhysRevB.85.041309 Author(s): Kensaku Chida, Masayuki Hashisaka, Yoshiaki Yamauchi, Shuji Nakamura, Tomonori Arakawa, Tomoki Machida, Kensuke Kobayashi, and Teruo Ono<br/><p>We study the shot noise (nonequilibrium current fluctuation) associated with dynamic nuclear polarization in a nonequilibrium quantum wire (QW) fabricated in a two-dimensional electron gas. We observe that the spin-polarized conductance quantization of the QW in the integer quantum Hall regime colla...</p><br/><img src="http://publish.aps.org/images/icons/prbsugg30x30.jpg" alt="PRB Editors' Suggestion"/> <img src="http://publish.aps.org/images/icons/rapid30x30.gif" width="30" height="30" alt="Rapid Communication"/> <br/>[Phys. Rev. B 85, 041309] Published Thu Jan 26, 2012 Author(s): Kensaku Chida, Masayuki Hashisaka, Yoshiaki Yamauchi, Shuji Nakamura, Tomonori Arakawa, Tomoki Machida, Kensuke Kobayashi, and Teruo Ono

PRB Editors' Suggestion Rapid Communication We study the shot noise (nonequilibrium current fluctuation) associated with dynamic nuclear polarization in a nonequilibrium quantum wire (QW) fabricated in a two-dimensional electron gas. We observe that the spin-polarized conductance quantization of the QW in the integer quantum Hall regime colla...

[Phys. Rev. B 85, 041309] Published Thu Jan 26, 2012

]]> Shot noise induced by electron-nuclear spin-flip scattering in a nonequilibrium quantum wire Kensaku Chida, Masayuki Hashisaka, Yoshiaki Yamauchi, Shuji Nakamura, Tomonori Arakawa, Tomoki Machida, Kensuke Kobayashi, and Teruo Ono 2012-01-26T10:00:00-05:00 Personal use only, all commercial or other reuse prohibited doi:10.1103/PhysRevB.85.041309 Phys. Rev. B 85, 041309 (2012) article Physical Review B 85 4 2012-01-26T10:00:00-05:00 10.1103/PhysRevB.85.041309 http://link.aps.org/doi/10.1103/PhysRevB.85.041309 041309 Semiconductors II: surfaces, interfaces, microstructures, and related topics Semiconductors II: surfaces, interfaces, microstructures, and related topics Effect of out-of-plane disorder on superconducting gap anisotropy in Bi_{2+x}Sr_{2−x}CaCu_{2}O_{8+δ} as seen via Raman spectroscopy http://link.aps.org/doi/10.1103/PhysRevB.85.020507 Author(s): N. Murai, T. Masui, M. Ishikado, S. Ishida, H. Eisaki, S. Uchida, and S. Tajima<br/><p>We report a systematic study of the variation of electronic Raman spectra as a function of disorder for Bi<span><sub>2+<span style="font-style: italic;">x</span></sub></span>Sr<span><sub>2−<span style="font-style: italic;">x</span></sub></span>CaCu<span><sub>2</sub></span>O<span><sub>8+<span style="font-style: italic;">δ</span></sub></span> with different Bi:Sr nonstoichiometry. We have observed that, with increasing disorder, the suppression of the superconducting gap is observed only in the nodal region, while t...</p><br/><img src="http://publish.aps.org/images/icons/rapid30x30.gif" width="30" height="30" alt="Rapid Communication"/> <br/>[Phys. Rev. B 85, 020507] Published Thu Jan 26, 2012 Author(s): N. Murai, T. Masui, M. Ishikado, S. Ishida, H. Eisaki, S. Uchida, and S. Tajima

Rapid Communication We report a systematic study of the variation of electronic Raman spectra as a function of disorder for Bi2+xSr2−xCaCu2O8+δ with different Bi:Sr nonstoichiometry. We have observed that, with increasing disorder, the suppression of the superconducting gap is observed only in the nodal region, while t...

[Phys. Rev. B 85, 020507] Published Thu Jan 26, 2012

]]> Effect of out-of-plane disorder on superconducting gap anisotropy in Bi_{2+x}Sr_{2−x}CaCu_{2}O_{8+δ} as seen via Raman spectroscopy N. Murai, T. Masui, M. Ishikado, S. Ishida, H. Eisaki, S. Uchida, and S. Tajima 2012-01-26T10:00:00-05:00 Personal use only, all commercial or other reuse prohibited doi:10.1103/PhysRevB.85.020507 Phys. Rev. B 85, 020507 (2012) article Physical Review B 85 2 2012-01-26T10:00:00-05:00 10.1103/PhysRevB.85.020507 http://link.aps.org/doi/10.1103/PhysRevB.85.020507 020507 Superfluidity and superconductivity Superfluidity and superconductivity Hydrodynamic rectified drag current in a quantum wire induced by Wigner crystallization http://link.aps.org/doi/10.1103/PhysRevB.85.041308 Author(s): M. Yamamoto, H. Takagi, M. Stopa, and S. Tarucha<br/><p>We measure Coulomb drag between displaced parallel quantum wires fabricated on a high-mobility two-dimensional electron gas using a split-gate technique. We observe a rectified Coulomb drag, in which the sign of the drag current is the same irrespective of the current direction in the drive wire, wh...</p><br/><img src="http://publish.aps.org/images/icons/rapid30x30.gif" width="30" height="30" alt="Rapid Communication"/> <br/>[Phys. Rev. B 85, 041308] Published Wed Jan 25, 2012 Author(s): M. Yamamoto, H. Takagi, M. Stopa, and S. Tarucha

Rapid Communication We measure Coulomb drag between displaced parallel quantum wires fabricated on a high-mobility two-dimensional electron gas using a split-gate technique. We observe a rectified Coulomb drag, in which the sign of the drag current is the same irrespective of the current direction in the drive wire, wh...

[Phys. Rev. B 85, 041308] Published Wed Jan 25, 2012

]]> Hydrodynamic rectified drag current in a quantum wire induced by Wigner crystallization M. Yamamoto, H. Takagi, M. Stopa, and S. Tarucha 2012-01-25T10:00:00-05:00 Personal use only, all commercial or other reuse prohibited doi:10.1103/PhysRevB.85.041308 Phys. Rev. B 85, 041308 (2012) article Physical Review B 85 4 2012-01-25T10:00:00-05:00 10.1103/PhysRevB.85.041308 http://link.aps.org/doi/10.1103/PhysRevB.85.041308 041308 Semiconductors II: surfaces, interfaces, microstructures, and related topics Semiconductors II: surfaces, interfaces, microstructures, and related topics Flat bands with nontrivial topology in three dimensions http://link.aps.org/doi/10.1103/PhysRevB.85.041104 Author(s): C. Weeks and M. Franz<br/><p>We construct a simple model for electrons in a three-dimensional crystal where a combination of short-range hopping and spin-orbit coupling results in nearly flat bands characterized by a nontrivial <span><span class="doublestruck">Z</span><sub>2</sub></span> topological index. The flat band is separated from other bands by a band gap <span><span style="font-style: italic;">Δ</span></span> that is much larger...</p><br/><img src="http://publish.aps.org/images/icons/rapid30x30.gif" width="30" height="30" alt="Rapid Communication"/> <br/>[Phys. Rev. B 85, 041104] Published Wed Jan 25, 2012 Author(s): C. Weeks and M. Franz

Rapid Communication We construct a simple model for electrons in a three-dimensional crystal where a combination of short-range hopping and spin-orbit coupling results in nearly flat bands characterized by a nontrivial Z2 topological index. The flat band is separated from other bands by a band gap Δ that is much larger...

[Phys. Rev. B 85, 041104] Published Wed Jan 25, 2012

]]> Flat bands with nontrivial topology in three dimensions C. Weeks and M. Franz 2012-01-25T10:00:00-05:00 Personal use only, all commercial or other reuse prohibited doi:10.1103/PhysRevB.85.041104 Phys. Rev. B 85, 041104 (2012) article Physical Review B 85 4 2012-01-25T10:00:00-05:00 10.1103/PhysRevB.85.041104 http://link.aps.org/doi/10.1103/PhysRevB.85.041104 041104 Electronic structure and strongly correlated systems Electronic structure and strongly correlated systems First-principles study of the electronic structure and magnetism of CaIrO_{3} http://link.aps.org/doi/10.1103/PhysRevB.85.020408 Author(s): Alaska Subedi<br/><p>I study the electronic structure and magnetism of postperovskite CaIrO<span><sub>3</sub></span> using first-principles calculations. The density functional calculations within the local density approximation without the combined effect of spin-orbit coupling and on-site Coulomb repulsion show the system to be metallic, whi...</p><br/><img src="http://publish.aps.org/images/icons/rapid30x30.gif" width="30" height="30" alt="Rapid Communication"/> <br/>[Phys. Rev. B 85, 020408] Published Wed Jan 25, 2012 Author(s): Alaska Subedi

Rapid Communication I study the electronic structure and magnetism of postperovskite CaIrO3 using first-principles calculations. The density functional calculations within the local density approximation without the combined effect of spin-orbit coupling and on-site Coulomb repulsion show the system to be metallic, whi...

[Phys. Rev. B 85, 020408] Published Wed Jan 25, 2012

]]> First-principles study of the electronic structure and magnetism of CaIrO_{3} Alaska Subedi 2012-01-25T10:00:00-05:00 Personal use only, all commercial or other reuse prohibited doi:10.1103/PhysRevB.85.020408 Phys. Rev. B 85, 020408 (2012) article Physical Review B 85 2 2012-01-25T10:00:00-05:00 10.1103/PhysRevB.85.020408 http://link.aps.org/doi/10.1103/PhysRevB.85.020408 020408 Magnetism Magnetism Far- and near-field electron beam detection of hybrid cavity-plasmonic modes in gold microholes http://link.aps.org/doi/10.1103/PhysRevB.85.041405 Author(s): I. Carmeli, M. A. Itskovsky, Y. Kauffmann, Y. Shaked, S. Richter, T. Maniv, and H. Cohen<br/><p>Electromagnetic far- and near-field excitations of rectangular microholes in gold films are investigated by means of a focused <span><span style="font-style: italic;">e</span></span> beam. Radiative cavity modes, well below the surface plasmon (SP) frequency, are detected at exceptionally large distances and are shown to be strongly enhanced at near-fi...</p><br/><img src="http://publish.aps.org/images/icons/rapid30x30.gif" width="30" height="30" alt="Rapid Communication"/> <br/>[Phys. Rev. B 85, 041405] Published Tue Jan 24, 2012 Author(s): I. Carmeli, M. A. Itskovsky, Y. Kauffmann, Y. Shaked, S. Richter, T. Maniv, and H. Cohen

Rapid Communication Electromagnetic far- and near-field excitations of rectangular microholes in gold films are investigated by means of a focused e beam. Radiative cavity modes, well below the surface plasmon (SP) frequency, are detected at exceptionally large distances and are shown to be strongly enhanced at near-fi...

[Phys. Rev. B 85, 041405] Published Tue Jan 24, 2012

]]> Far- and near-field electron beam detection of hybrid cavity-plasmonic modes in gold microholes I. Carmeli, M. A. Itskovsky, Y. Kauffmann, Y. Shaked, S. Richter, T. Maniv, and H. Cohen 2012-01-24T10:00:00-05:00 Personal use only, all commercial or other reuse prohibited doi:10.1103/PhysRevB.85.041405 Phys. Rev. B 85, 041405 (2012) article Physical Review B 85 4 2012-01-24T10:00:00-05:00 10.1103/PhysRevB.85.041405 http://link.aps.org/doi/10.1103/PhysRevB.85.041405 041405 Surface physics, nanoscale physics, low-dimensional systems Surface physics, nanoscale physics, low-dimensional systems Theory of quasiparticle vortex bound states in iron-based superconductors: Application to scanning tunneling spectroscopy of LiFeAs http://link.aps.org/doi/10.1103/PhysRevB.85.020506 Author(s): Yan Wang, Peter J. Hirschfeld, and Ilya Vekhter<br/><p>The spectroscopy of vortex bound states can provide valuable information on the structure of the superconducting order parameter. Quasiparticle wave functions are expected to leak out in the directions of gap minima or nodes, if they exist, and scanning tunneling spectroscopy (STS) on these low-ener...</p><br/><img src="http://publish.aps.org/images/icons/rapid30x30.gif" width="30" height="30" alt="Rapid Communication"/> <br/>[Phys. Rev. B 85, 020506] Published Tue Jan 24, 2012 Author(s): Yan Wang, Peter J. Hirschfeld, and Ilya Vekhter

Rapid Communication The spectroscopy of vortex bound states can provide valuable information on the structure of the superconducting order parameter. Quasiparticle wave functions are expected to leak out in the directions of gap minima or nodes, if they exist, and scanning tunneling spectroscopy (STS) on these low-ener...

[Phys. Rev. B 85, 020506] Published Tue Jan 24, 2012

]]> Theory of quasiparticle vortex bound states in iron-based superconductors: Application to scanning tunneling spectroscopy of LiFeAs Yan Wang, Peter J. Hirschfeld, and Ilya Vekhter 2012-01-24T10:00:00-05:00 Personal use only, all commercial or other reuse prohibited doi:10.1103/PhysRevB.85.020506 Phys. Rev. B 85, 020506 (2012) article Physical Review B 85 2 2012-01-24T10:00:00-05:00 10.1103/PhysRevB.85.020506 http://link.aps.org/doi/10.1103/PhysRevB.85.020506 020506 Superfluidity and superconductivity Superfluidity and superconductivity Efficiency of quasiparticle evacuation in superconducting devices http://link.aps.org/doi/10.1103/PhysRevB.85.020505 Author(s): Sukumar Rajauria, L. M. A. Pascal, Ph. Gandit, F. W. J. Hekking, B. Pannetier, and H. Courtois<br/><p>The diffusion of excess quasiparticles in a current-biased superconductor strip in proximity to a metallic trap junction is studied. In particular, we have measured accurately the superconductor temperature at a near-gap injection voltage. By analyzing our data quantitatively, we provide a full desc...</p><br/><img src="http://publish.aps.org/images/icons/rapid30x30.gif" width="30" height="30" alt="Rapid Communication"/> <br/>[Phys. Rev. B 85, 020505] Published Mon Jan 23, 2012 Author(s): Sukumar Rajauria, L. M. A. Pascal, Ph. Gandit, F. W. J. Hekking, B. Pannetier, and H. Courtois

Rapid Communication The diffusion of excess quasiparticles in a current-biased superconductor strip in proximity to a metallic trap junction is studied. In particular, we have measured accurately the superconductor temperature at a near-gap injection voltage. By analyzing our data quantitatively, we provide a full desc...

[Phys. Rev. B 85, 020505] Published Mon Jan 23, 2012

]]> Efficiency of quasiparticle evacuation in superconducting devices Sukumar Rajauria, L. M. A. Pascal, Ph. Gandit, F. W. J. Hekking, B. Pannetier, and H. Courtois 2012-01-23T10:00:00-05:00 Personal use only, all commercial or other reuse prohibited doi:10.1103/PhysRevB.85.020505 Phys. Rev. B 85, 020505 (2012) article Physical Review B 85 2 2012-01-23T10:00:00-05:00 10.1103/PhysRevB.85.020505 http://link.aps.org/doi/10.1103/PhysRevB.85.020505 020505 Superfluidity and superconductivity Superfluidity and superconductivity Trions in ZnO quantum wells and verification of the valence band ordering http://link.aps.org/doi/10.1103/PhysRevB.85.041307 Author(s): J. Puls, S. Sadofev, and F. Henneberger<br/><p>Unambiguous evidence of negatively charged excitons (trions) in ZnO/(Zn,Mg)O quantum wells is provided by magneto-optical studies. Distinct features are detected both in transmission and photoluminescence with a spectral width clearly below the trion binding energy of 13 meV. The magnetic-field-indu...</p><br/><img src="http://publish.aps.org/images/icons/rapid30x30.gif" width="30" height="30" alt="Rapid Communication"/> <br/>[Phys. Rev. B 85, 041307] Published Fri Jan 20, 2012 Author(s): J. Puls, S. Sadofev, and F. Henneberger

Rapid Communication Unambiguous evidence of negatively charged excitons (trions) in ZnO/(Zn,Mg)O quantum wells is provided by magneto-optical studies. Distinct features are detected both in transmission and photoluminescence with a spectral width clearly below the trion binding energy of 13 meV. The magnetic-field-indu...

[Phys. Rev. B 85, 041307] Published Fri Jan 20, 2012

]]> Trions in ZnO quantum wells and verification of the valence band ordering J. Puls, S. Sadofev, and F. Henneberger 2012-01-20T10:00:00-05:00 Personal use only, all commercial or other reuse prohibited doi:10.1103/PhysRevB.85.041307 Phys. Rev. B 85, 041307 (2012) article Physical Review B 85 4 2012-01-20T10:00:00-05:00 10.1103/PhysRevB.85.041307 http://link.aps.org/doi/10.1103/PhysRevB.85.041307 041307 Semiconductors II: surfaces, interfaces, microstructures, and related topics Semiconductors II: surfaces, interfaces, microstructures, and related topics Confinement effects on the vibrational properties of III-V and II-VI nanoclusters http://link.aps.org/doi/10.1103/PhysRevB.85.041306 Author(s): Peng Han and Gabriel Bester<br/><p>We present a first-principles study of the confinement effects on the vibrational properties of thousand atoms (radii up to 16.2 Å) colloidal III-V and II-VI nanoclusters. We describe how the molecular-type vibrations, such as surface-optical, surface-acoustic, and coherent acoustic modes, coexist a...</p><br/><img src="http://publish.aps.org/images/icons/rapid30x30.gif" width="30" height="30" alt="Rapid Communication"/> <br/>[Phys. Rev. B 85, 041306] Published Thu Jan 19, 2012 Author(s): Peng Han and Gabriel Bester

Rapid Communication We present a first-principles study of the confinement effects on the vibrational properties of thousand atoms (radii up to 16.2 Å) colloidal III-V and II-VI nanoclusters. We describe how the molecular-type vibrations, such as surface-optical, surface-acoustic, and coherent acoustic modes, coexist a...

[Phys. Rev. B 85, 041306] Published Thu Jan 19, 2012

]]> Confinement effects on the vibrational properties of III-V and II-VI nanoclusters Peng Han and Gabriel Bester 2012-01-19T10:00:00-05:00 Personal use only, all commercial or other reuse prohibited doi:10.1103/PhysRevB.85.041306 Phys. Rev. B 85, 041306 (2012) article Physical Review B 85 4 2012-01-19T10:00:00-05:00 10.1103/PhysRevB.85.041306 http://link.aps.org/doi/10.1103/PhysRevB.85.041306 041306 Semiconductors II: surfaces, interfaces, microstructures, and related topics Semiconductors II: surfaces, interfaces, microstructures, and related topics