http://prl.aps.org/ Metal-insulator transitions articles published in Physical Review Journals en-us Copyright (c) 2009 The American Physical Society 2009-11-07T12:25:19-05:00 assocpub@aps.org rss@aps.org hourly 4 2009-11-07T12:25:19-05:00 rss@aps.org http://link.aps.org/doi/10.1103/PhysRevB.80.174506 Author(s): Yoshihiro Eto, Atsushi Kawamoto, Noriaki Matsunaga, Kazushige Nomura, Kaoru Yamamoto, and Kyuya Yakushi<br/>We assessed the infrared-absorption spectra and ^{13} C -NMR measurements in a layered organic salt, β^{′} -(BEDT-TTF)(TCNQ), which exhibits antiferromagnetic transitions at 20 and 3 K. The former originates from the spin in the bis-(ethylenedithio)-tetrathiafulvalene (BEDT-TTF) layers, while the...<br/>[Phys. Rev. B 80, 174506] Published Fri Nov 06, 2009 Yoshihiro Eto, Atsushi Kawamoto, Noriaki Matsunaga, Kazushige Nomura, Kaoru Yamamoto, and Kyuya Yakushi 2009-11-06T00:00:00-05:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.80.174506 Phys. Rev. B 80, 174506 text/html article Physical Review B 80 17 2009-11-06T00:00:00-05:00 174506 Superfluidity and superconductivity Superfluidity and superconductivity http://link.aps.org/doi/10.1103/PhysRevB.80.195107 Author(s): R. J. O. Mossanek, M. Abbate, P. T. Fonseca, A. Fujimori, H. Eisaki, S. Uchida, and Y. Tokura<br/>Core-level and valence-band optical spectra provide important information on highly correlated systems. The former corresponds to transitions from the core level to the conduction band, and it is usually related to the unoccupied electronic structure. The later corresponds to transitions from the va...<br/>[Phys. Rev. B 80, 195107] Published Fri Nov 06, 2009 R. J. O. Mossanek, M. Abbate, P. T. Fonseca, A. Fujimori, H. Eisaki, S. Uchida, and Y. Tokura 2009-11-06T00:00:00-05:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.80.195107 Phys. Rev. B 80, 195107 text/html article Physical Review B 80 19 2009-11-06T00:00:00-05:00 195107 Electronic structure: wide-band, narrow-band, and strongly correlated systems Electronic structure: wide-band, narrow-band, and strongly correlated systems http://link.aps.org/doi/10.1103/PhysRevB.80.165132 Author(s): Kalobaran Maiti, Jörg Fink, Sanne de Jong, Mihaela Gorgoi, Chengtian Lin, Markus Raichle, Vladimir Hinkov, Michael Lambacher, Andreas Erb, and Mark S. Golden<br/>The electronic structure of YBa_{2} Cu_{3} O_{6+x} and La_{2−x} Sr_{x} CuO_{4} for various values of x has been investigated using hard x-ray photoemission spectroscopy. The experimental results establish that the cleaving of YBa_{2} Cu_{3} O_{6+x} compounds occurs predominantly in the BaCuO_{3} c...<br/>[Phys. Rev. B 80, 165132] Published Fri Oct 30, 2009 Kalobaran Maiti, Jörg Fink, Sanne de Jong, Mihaela Gorgoi, Chengtian Lin, Markus Raichle, Vladimir Hinkov, Michael Lambacher, Andreas Erb, and Mark S. Golden 2009-10-30T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.80.165132 Phys. Rev. B 80, 165132 text/html article Physical Review B 80 16 2009-10-30T00:00:00-04:00 165132 Electronic structure: wide-band, narrow-band, and strongly correlated systems Electronic structure: wide-band, narrow-band, and strongly correlated systems http://link.aps.org/doi/10.1103/PhysRevB.80.169907 Author(s): Y. G. Shi, Y. F. Guo, S. Yu, M. Arai, A. A. Belik, A. Sato, K. Yamaura, E. Takayama-Muromachi, H. F. Tian, H. X. Yang, J. Q. Li, T. Varga, J. F. Mitchell, and S. Okamoto<br/>[Phys. Rev. B 80, 169907] Published Fri Oct 30, 2009 Y. G. Shi, Y. F. Guo, S. Yu, M. Arai, A. A. Belik, A. Sato, K. Yamaura, E. Takayama-Muromachi, H. F. Tian, H. X. Yang, J. Q. Li, T. Varga, J. F. Mitchell, and S. Okamoto 2009-10-30T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.80.169907 Phys. Rev. B 80, 169907 text/html article Physical Review B 80 16 2009-10-30T00:00:00-04:00 169907 ERRATA ERRATA http://link.aps.org/doi/10.1103/PhysRevB.80.165130 Author(s): Yong Wang, Manish K. Niranjan, S. S. Jaswal, and Evgeny Y. Tsymbal<br/>The discovery of a two-dimensional electron gas (2DEG) at the interface between two insulating oxides has recently stimulated intense research activity in this field. The 2DEG has unique properties that are promising for applications in all-oxide electronic devices. For such applications it is desir...<br/>[Phys. Rev. B 80, 165130] Published Thu Oct 29, 2009 Yong Wang, Manish K. Niranjan, S. S. Jaswal, and Evgeny Y. Tsymbal 2009-10-29T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.80.165130 Phys. Rev. B 80, 165130 text/html article Physical Review B 80 16 2009-10-29T00:00:00-04:00 165130 Electronic structure: wide-band, narrow-band, and strongly correlated systems Electronic structure: wide-band, narrow-band, and strongly correlated systems http://link.aps.org/doi/10.1103/PhysRevB.80.165429 Author(s): O. V. Gamayun, E. V. Gorbar, and V. P. Gusynin<br/>It is well known that there are resonant states with complex energy for the supercritical Coulomb impurity in graphene. We show that opening of a quasiparticle gap decreases the imaginary part of energy, |Im E| , of these states and stabilizes the system. For gapless quasiparticles with strong Cou...<br/>[Phys. Rev. B 80, 165429] Published Wed Oct 28, 2009 O. V. Gamayun, E. V. Gorbar, and V. P. Gusynin 2009-10-28T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.80.165429 Phys. Rev. B 80, 165429 text/html article Physical Review B 80 16 2009-10-28T00:00:00-04:00 165429 Surface physics, nanoscale physics, low-dimensional systems Surface physics, nanoscale physics, low-dimensional systems http://link.aps.org/doi/10.1103/PhysRevB.80.153102 Author(s): Lorenzo Malavasi, Michela Brunelli, Yuri Diaz-Fernandez, Bholanath Pahari, and Piercarlo Mustarelli<br/>In this Brief Report we report high-resolution synchrotron x-ray diffraction and x-ray pair-distribution-function analysis as a function of temperature on the HoBaCo_{2} O_{5.5} cobaltite. These investigations provided a direct evidence of a structural phase transition from an orthorhombic to a mono...<br/>[Phys. Rev. B 80, 153102] Published Fri Oct 23, 2009 Lorenzo Malavasi, Michela Brunelli, Yuri Diaz-Fernandez, Bholanath Pahari, and Piercarlo Mustarelli 2009-10-23T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.80.153102 Phys. Rev. B 80, 153102 text/html article Physical Review B 80 15 2009-10-23T00:00:00-04:00 153102 Electronic structure: wide-band, narrow-band, and strongly correlated systems Electronic structure: wide-band, narrow-band, and strongly correlated systems http://link.aps.org/doi/10.1103/PhysRevB.80.155130 Author(s): Reza Nourafkan, Massimo Capone, and Nasser Nafari<br/>The effect of a solid-vacuum interface on the properties of a strongly coupled electron-phonon system is analyzed using dynamical mean-field theory to solve the Holstein model in a semi-infinite cubic lattice. Polaron formation is found to occur more easily, i.e., for a weaker electron-phonon coupli...<br/>[Phys. Rev. B 80, 155130] Published Fri Oct 23, 2009 Reza Nourafkan, Massimo Capone, and Nasser Nafari 2009-10-23T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.80.155130 Phys. Rev. B 80, 155130 text/html article Physical Review B 80 15 2009-10-23T00:00:00-04:00 155130 Electronic structure: wide-band, narrow-band, and strongly correlated systems Electronic structure: wide-band, narrow-band, and strongly correlated systems http://link.aps.org/doi/10.1103/PhysRevB.80.161104 Author(s): Y. G. Shi, Y. F. Guo, S. Yu, M. Arai, A. A. Belik, A. Sato, K. Yamaura, E. Takayama-Muromachi, H. F. Tian, H. X. Yang, J. Q. Li, T. Varga, J. F. Mitchell, and S. Okamoto<br/>The perovskite NaOsO_{3} shows a Curie-Weiss metallic nature at high temperature and suddenly goes into an antiferromagnetically insulating state at 410 K on cooling. Electronic specific heat at the low-temperature limit is absent, indicating that the band gap fully opens. In situ observation in ele...<br/><img src="http://prola.aps.org/graphics/rapid30x30.gif" width="30" height="30" alt="Rapid Communication"/><br/>[Phys. Rev. B 80, 161104] Published Fri Oct 23, 2009 Y. G. Shi, Y. F. Guo, S. Yu, M. Arai, A. A. Belik, A. Sato, K. Yamaura, E. Takayama-Muromachi, H. F. Tian, H. X. Yang, J. Q. Li, T. Varga, J. F. Mitchell, and S. Okamoto 2009-10-23T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.80.161104 Phys. Rev. B 80, 161104 text/html article Physical Review B 80 16 2009-10-23T00:00:00-04:00 161104 Electronic structure: wide-band, narrow-band, and strongly correlated systems Electronic structure: wide-band, narrow-band, and strongly correlated systems http://link.aps.org/doi/10.1103/PhysRevB.80.132406 Author(s): K. Horiba, A. Maniwa, A. Chikamatsu, K. Yoshimatsu, H. Kumigashira, H. Wadati, A. Fujimori, S. Ueda, H. Yoshikawa, E. Ikenaga, J. J. Kim, K. Kobayashi, and M. Oshima<br/>We report the observation of pressure-induced changes in the electronic structures of La_{1−x} Sr_{x} MnO_{3} (LSMO) by hard x-ray photoemission spectroscopy. Application of compressive and tensile strains results in the formation of a gap at the Fermi level (E_{F} ) and suppression of spectral we...<br/>[Phys. Rev. B 80, 132406] Published Wed Oct 21, 2009 K. Horiba, A. Maniwa, A. Chikamatsu, K. Yoshimatsu, H. Kumigashira, H. Wadati, A. Fujimori, S. Ueda, H. Yoshikawa, E. Ikenaga, J. J. Kim, K. Kobayashi, and M. Oshima 2009-10-21T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.80.132406 Phys. Rev. B 80, 132406 text/html article Physical Review B 80 13 2009-10-21T00:00:00-04:00 132406 Magnetism Magnetism http://link.aps.org/doi/10.1103/PhysRevB.80.134514 Author(s): Madhavi Chand, Archana Mishra, Y. M. Xiong, Anand Kamlapure, S. P. Chockalingam, John Jesudasan, Vivas Bagwe, Mintu Mondal, P. W. Adams, Vikram Tripathi, and Pratap Raychaudhuri<br/>We report the temperature dependence of resistivity (ρ) and Hall coefficient (R_{H} ) in the normal state of homogeneously disordered epitaxial NbN thin films with k_{F} l∼1.68–10.12 . The superconducting transition temperature (T_{c} ) of these films varies from 2.7 to 16.8 K. While our least ...<br/>[Phys. Rev. B 80, 134514] Published Tue Oct 20, 2009 Madhavi Chand, Archana Mishra, Y. M. Xiong, Anand Kamlapure, S. P. Chockalingam, John Jesudasan, Vivas Bagwe, Mintu Mondal, P. W. Adams, Vikram Tripathi, and Pratap Raychaudhuri 2009-10-20T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.80.134514 Phys. Rev. B 80, 134514 text/html article Physical Review B 80 13 2009-10-20T00:00:00-04:00 134514 Superfluidity and superconductivity Superfluidity and superconductivity http://link.aps.org/doi/10.1103/PhysRevB.80.155441 Author(s): Jun-Won Rhim and Kyungsun Moon<br/>We theoretically study the spin stiffness of graphene and graphene nanoribbon based on the Hubbard-type Hamiltonian. Using the Hartree-Fock method with the inclusion of the adiabatic spin twist, we have obtained the effective energy functional and investigated the magnetic excitations of the two-dim...<br/>[Phys. Rev. B 80, 155441] Published Tue Oct 20, 2009 Jun-Won Rhim and Kyungsun Moon 2009-10-20T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.80.155441 Phys. Rev. B 80, 155441 text/html article Physical Review B 80 15 2009-10-20T00:00:00-04:00 155441 Surface physics, nanoscale physics, low-dimensional systems Surface physics, nanoscale physics, low-dimensional systems http://link.aps.org/doi/10.1103/PhysRevE.80.045201 Author(s): M. Martínez-Mares and A. Robledo<br/>We exhibit a remarkable equivalence between the dynamics of an intermittent nonlinear map and the electronic transport properties (obtained via the scattering matrix) of a crystal defined on a double Cayley tree. This strict analogy reveals in detail the nature of the mobility edge normally studied ...<br/><img src="http://prola.aps.org/graphics/rapid30x30.gif" width="30" height="30" alt="Rapid Communication"/><br/>[Phys. Rev. E 80, 045201] Published Mon Oct 19, 2009 M. Martínez-Mares and A. Robledo 2009-10-19T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevE.80.045201 Phys. Rev. E 80, 045201 text/html article Physical Review E 80 4 2009-10-19T00:00:00-04:00 045201 Chaos and pattern formation Chaos and pattern formation http://link.aps.org/doi/10.1103/PhysRevB.80.155432 Author(s): R. Peköz and J.-Y. Raty<br/>Germanium/Germanium-Silicon core/shell nanowires are expected to play an important role in future electronic devices. We use first-principles plane-wave calculations within density-functional theory in the generalized gradient approximation to investigate the structural and electronic properties of ...<br/>[Phys. Rev. B 80, 155432] Published Wed Oct 14, 2009 R. Peköz and J.-Y. Raty 2009-10-14T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.80.155432 Phys. Rev. B 80, 155432 text/html article Physical Review B 80 15 2009-10-14T00:00:00-04:00 155432 Surface physics, nanoscale physics, low-dimensional systems Surface physics, nanoscale physics, low-dimensional systems http://link.aps.org/doi/10.1103/PhysRevB.80.155119 Author(s): S. Glawion, M. R. Scholz, Y.-Z. Zhang, R. Valentí, T. Saha-Dasgupta, M. Klemm, J. Hemberger, S. Horn, M. Sing, and R. Claessen<br/>We have studied the electronic structure of the two-dimensional Heisenberg antiferromagnet VOCl using photoemission spectroscopy and density-functional theory including local Coulomb repulsion. From calculated exchange integrals and the observed energy dispersions we argue that the degree of one dim...<br/>[Phys. Rev. B 80, 155119] Published Tue Oct 13, 2009 S. Glawion, M. R. Scholz, Y.-Z. Zhang, R. Valentí, T. Saha-Dasgupta, M. Klemm, J. Hemberger, S. Horn, M. Sing, and R. Claessen 2009-10-13T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.80.155119 Phys. Rev. B 80, 155119 text/html article Physical Review B 80 15 2009-10-13T00:00:00-04:00 155119 Electronic structure: wide-band, narrow-band, and strongly correlated systems Electronic structure: wide-band, narrow-band, and strongly correlated systems http://link.aps.org/doi/10.1103/PhysRevB.80.161102 Author(s): Andrew Douglas and K. A. Muttalib<br/>We obtain an analytic expression for the full distribution of conductance for a strongly disordered three-dimensional conductor within a perturbative approach based on transfer-matrix formulation. Our results confirm the numerical evidence that the log-normal limit of the distribution is not reached...<br/><img src="http://prola.aps.org/graphics/rapid30x30.gif" width="30" height="30" alt="Rapid Communication"/><br/>[Phys. Rev. B 80, 161102] Published Tue Oct 13, 2009 Andrew Douglas and K. A. Muttalib 2009-10-13T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.80.161102 Phys. Rev. B 80, 161102 text/html article Physical Review B 80 16 2009-10-13T00:00:00-04:00 161102 Electronic structure: wide-band, narrow-band, and strongly correlated systems Electronic structure: wide-band, narrow-band, and strongly correlated systems http://link.aps.org/doi/10.1103/PhysRevB.80.161302 Author(s): G. M. Gusev, S. Wiedmann, O. E. Raichev, A. K. Bakarov, and J. C. Portal<br/>Magnetotransport measurements in triple-layer electron systems with high carrier density reveal fractional quantum Hall effect at total filling factors ν>2 . With an in-plane magnetic field we are able to control the suppression of interlayer tunneling which causes a collapse of the integer quantum ...<br/><img src="http://prola.aps.org/graphics/rapid30x30.gif" width="30" height="30" alt="Rapid Communication"/><br/>[Phys. Rev. B 80, 161302] Published Tue Oct 13, 2009 G. M. Gusev, S. Wiedmann, O. E. Raichev, A. K. Bakarov, and J. C. Portal 2009-10-13T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.80.161302 Phys. Rev. B 80, 161302 text/html article Physical Review B 80 16 2009-10-13T00:00:00-04:00 161302 Semiconductors II: surfaces, interfaces, microstructures, and related topics Semiconductors II: surfaces, interfaces, microstructures, and related topics http://link.aps.org/doi/10.1103/PhysRevB.80.165114 Author(s): T. Motohashi, T. Ono, Y. Sugimoto, Y. Masubuchi, S. Kikkawa, R. Kanno, M. Karppinen, and H. Yamauchi<br/>Here we report the magnetic properties of the layered cobalt oxide system, Li_{x} CoO_{2} , in the whole range of Li composition, 0≤x≤1 . Based on dc-magnetic-susceptibility data, combined with results of ^{59} Co nuclear magnetic resonance (NMR) and nuclear quadrupole resonance (NQR) observatio...<br/>[Phys. Rev. B 80, 165114] Published Fri Oct 09, 2009 T. Motohashi, T. Ono, Y. Sugimoto, Y. Masubuchi, S. Kikkawa, R. Kanno, M. Karppinen, and H. Yamauchi 2009-10-09T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.80.165114 Phys. Rev. B 80, 165114 text/html article Physical Review B 80 16 2009-10-09T00:00:00-04:00 165114 Electronic structure: wide-band, narrow-band, and strongly correlated systems Electronic structure: wide-band, narrow-band, and strongly correlated systems http://link.aps.org/doi/10.1103/PhysRevB.80.165115 Author(s): V. Brouet, M. Marsi, B. Mansart, A. Nicolaou, A. Taleb-Ibrahimi, P. Le Fèvre, F. Bertran, F. Rullier-Albenque, A. Forget, and D. Colson<br/>We present a comprehensive angle-resolved photoemission study of the three-dimensional electronic structure of Ba(Fe_{1−x} Co_{x} )_{2} As_{2} . The wide range of dopings covered by this study, x=0 to x=0.3 , allows to extract systematic features of the electronic structure. We show that there are...<br/>[Phys. Rev. B 80, 165115] Published Fri Oct 09, 2009 V. Brouet, M. Marsi, B. Mansart, A. Nicolaou, A. Taleb-Ibrahimi, P. Le Fèvre, F. Bertran, F. Rullier-Albenque, A. Forget, and D. Colson 2009-10-09T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.80.165115 Phys. Rev. B 80, 165115 text/html article Physical Review B 80 16 2009-10-09T00:00:00-04:00 165115 Electronic structure: wide-band, narrow-band, and strongly correlated systems Electronic structure: wide-band, narrow-band, and strongly correlated systems http://link.aps.org/doi/10.1103/PhysRevB.80.155115 Author(s): E. Papalazarou, Matteo Gatti, M. Marsi, V. Brouet, F. Iori, Lucia Reining, E. Annese, I. Vobornik, F. Offi, A. Fondacaro, S. Huotari, P. Lacovig, O. Tjernberg, N. B. Brookes, M. Sacchi, P. Metcalf, and G. Panaccione<br/>We present a comprehensive study of the photon energy dependence of the valence band photoemission yield in the prototype Mott-Hubbard oxide V_{2} O_{3} . The analysis of our experimental results, covering an extended photon energy range (20–6000 eV) and combined with GW calculations, allows us to...<br/>[Phys. Rev. B 80, 155115] Published Thu Oct 08, 2009 E. Papalazarou, Matteo Gatti, M. Marsi, V. Brouet, F. Iori, Lucia Reining, E. Annese, I. Vobornik, F. Offi, A. Fondacaro, S. Huotari, P. Lacovig, O. Tjernberg, N. B. Brookes, M. Sacchi, P. Metcalf, and G. Panaccione 2009-10-08T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.80.155115 Phys. Rev. B 80, 155115 text/html article Physical Review B 80 15 2009-10-08T00:00:00-04:00 155115 Electronic structure: wide-band, narrow-band, and strongly correlated systems Electronic structure: wide-band, narrow-band, and strongly correlated systems http://link.aps.org/doi/10.1103/PhysRevB.80.155113 Author(s): M. Rini, Y. Zhu, S. Wall, R. I. Tobey, H. Ehrke, T. Garl, J. W. Freeland, Y. Tomioka, Y. Tokura, A. Cavalleri, and R. W. Schoenlein<br/>We use time-resolved x-ray absorption near-edge structure spectroscopy to investigate the electronic dynamics associated with the photoinduced insulator-to-metal phase transition in the colossal magnetoresistive manganite Pr_{0.7} Ca_{0.3} MnO_{3} . Absorption changes at the O K and Mn L edges d...<br/>[Phys. Rev. B 80, 155113] Published Wed Oct 07, 2009 M. Rini, Y. Zhu, S. Wall, R. I. Tobey, H. Ehrke, T. Garl, J. W. Freeland, Y. Tomioka, Y. Tokura, A. Cavalleri, and R. W. Schoenlein 2009-10-07T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.80.155113 Phys. Rev. B 80, 155113 text/html article Physical Review B 80 15 2009-10-07T00:00:00-04:00 155113 Electronic structure: wide-band, narrow-band, and strongly correlated systems Electronic structure: wide-band, narrow-band, and strongly correlated systems http://link.aps.org/doi/10.1103/PhysRevB.80.165110 Author(s): S. Fratini and J. Merino<br/>The interplay between long-range and local Coulomb repulsions in strongly interacting electron systems is explored through a two-dimensional Hubbard-Wigner model. An unconventional metallic state is found in which collective low-energy excitations characteristic of the Wigner crystal induce a flow o...<br/>[Phys. Rev. B 80, 165110] Published Wed Oct 07, 2009 S. Fratini and J. Merino 2009-10-07T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.80.165110 Phys. Rev. B 80, 165110 text/html article Physical Review B 80 16 2009-10-07T00:00:00-04:00 165110 Electronic structure: wide-band, narrow-band, and strongly correlated systems Electronic structure: wide-band, narrow-band, and strongly correlated systems http://link.aps.org/doi/10.1103/PhysRevB.80.169902 Author(s): Vijay B. Shenoy, Tribikram Gupta, H. R. Krishnamurthy, and T. V. Ramakrishnan<br/>[Phys. Rev. B 80, 169902] Published Tue Oct 06, 2009 Vijay B. Shenoy, Tribikram Gupta, H. R. Krishnamurthy, and T. V. Ramakrishnan 2009-10-06T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.80.169902 Phys. Rev. B 80, 169902 text/html article Physical Review B 80 16 2009-10-06T00:00:00-04:00 169902 ERRATA ERRATA http://link.aps.org/doi/10.1103/PhysRevB.80.155412 Author(s): L. H. Ho, A. P. Micolich, A. R. Hamilton, and O. P. Sushkov<br/>The use of a nearby metallic ground-plane to limit the range of the Coulomb interactions between carriers is a useful approach in studying the physics of two-dimensional (2D) systems. This approach has been used to study Wigner crystallization of electrons on the surface of liquid helium, and most r...<br/>[Phys. Rev. B 80, 155412] Published Mon Oct 05, 2009 L. H. Ho, A. P. Micolich, A. R. Hamilton, and O. P. Sushkov 2009-10-05T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.80.155412 Phys. Rev. B 80, 155412 text/html article Physical Review B 80 15 2009-10-05T00:00:00-04:00 155412 Surface physics, nanoscale physics, low-dimensional systems Surface physics, nanoscale physics, low-dimensional systems http://link.aps.org/doi/10.1103/PhysRevLett.103.146405 Author(s): N. Katayama, M. Uchida, D. Hashizume, S. Niitaka, J. Matsuno, D. Matsumura, Y. Nishihata, J. Mizuki, N. Takeshita, A. Gauzzi, M. Nohara, and H. Takagi<br/>We investigate LiVS_{2} and LiVSe_{2} with a triangular lattice as itinerant analogues of LiVO_{2} known for the formation of a valence-bond solid (VBS) state out of an S=1 frustrated magnet. LiVS_{2} , which is located at the border between a metal and a correlated insulator, shows a first order tr...<br/>[Phys. Rev. Lett. 103, 146405] Published Fri Oct 02, 2009 N. Katayama, M. Uchida, D. Hashizume, S. Niitaka, J. Matsuno, D. Matsumura, Y. Nishihata, J. Mizuki, N. Takeshita, A. Gauzzi, M. Nohara, and H. Takagi 2009-10-02T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevLett.103.146405 Phys. Rev. Lett. 103, 146405 text/html article Physical Review Letters 103 14 2009-10-02T00:00:00-04:00 146405 Condensed Matter: Electronic Properties, etc. Condensed Matter: Electronic Properties, etc. http://link.aps.org/doi/10.1103/PhysRevB.80.165103 Author(s): Shinji Hirose and Atsushi Kawamoto<br/>Among quasi-two-dimensional organic conductors, (BEDT-TTF)_{2} X , what form the two column structure of α or θ is thought to show a charge-ordering insulating state. The α^{′} modification is the other candidate for a charge-ordering state. To determine the existence of a charge-ordering state...<br/>[Phys. Rev. B 80, 165103] Published Fri Oct 02, 2009 Shinji Hirose and Atsushi Kawamoto 2009-10-02T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.80.165103 Phys. Rev. B 80, 165103 text/html article Physical Review B 80 16 2009-10-02T00:00:00-04:00 165103 Electronic structure: wide-band, narrow-band, and strongly correlated systems Electronic structure: wide-band, narrow-band, and strongly correlated systems http://link.aps.org/doi/10.1103/PhysRevB.80.165106 Author(s): N. B. Perkins, S. Di Matteo, and C. R. Natoli<br/>Motivated by recent results of Nth order muffin-tin-orbital (NMTO) implementation of density-functional theory, we re-examine low-temperature ground-state properties of the antiferromagnetic insulating phase of vanadium sesquioxide V_{2} O_{3} . In fact, the hopping matrix elements within the neares...<br/>[Phys. Rev. B 80, 165106] Published Fri Oct 02, 2009 N. B. Perkins, S. Di Matteo, and C. R. Natoli 2009-10-02T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.80.165106 Phys. Rev. B 80, 165106 text/html article Physical Review B 80 16 2009-10-02T00:00:00-04:00 165106 Electronic structure: wide-band, narrow-band, and strongly correlated systems Electronic structure: wide-band, narrow-band, and strongly correlated systems http://link.aps.org/doi/10.1103/PhysRevLett.103.146403 Author(s): Kunihiro Hasegawa, Masahiko Isobe, Touru Yamauchi, Hiroaki Ueda, Jun-Ichi Yamaura, Hirotada Gotou, Takehiko Yagi, Hirohiko Sato, and Yutaka Ueda<br/>The hollandite chromium oxide K_{2} Cr_{8} O_{16} has been synthesized in both powder and single-crystal form under high pressure. Combining electrical resistivity, magnetic susceptibility, and x-ray diffraction, we found that K_{2} Cr_{8} O_{16} is a ferromagnetic metal (or half-metal) with T_{C} =...<br/>[Phys. Rev. Lett. 103, 146403] Published Thu Oct 01, 2009 Kunihiro Hasegawa, Masahiko Isobe, Touru Yamauchi, Hiroaki Ueda, Jun-Ichi Yamaura, Hirotada Gotou, Takehiko Yagi, Hirohiko Sato, and Yutaka Ueda 2009-10-01T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevLett.103.146403 Phys. Rev. Lett. 103, 146403 text/html article Physical Review Letters 103 14 2009-10-01T00:00:00-04:00 146403 Condensed Matter: Electronic Properties, etc. Condensed Matter: Electronic Properties, etc. http://link.aps.org/doi/10.1103/PhysRevB.80.155101 Author(s): S. Ejima and H. Fehske<br/>We analyze the spectral properties of a very general two-channel fermion-boson transport model in the insulating and metallic regimes and the signatures of the metal-insulator quantum phase transition in between. To this end we determine the single-particle spectral function related to angle-resolve...<br/>[Phys. Rev. B 80, 155101] Published Thu Oct 01, 2009 S. Ejima and H. Fehske 2009-10-01T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.80.155101 Phys. Rev. B 80, 155101 text/html article Physical Review B 80 15 2009-10-01T00:00:00-04:00 155101 Electronic structure: wide-band, narrow-band, and strongly correlated systems Electronic structure: wide-band, narrow-band, and strongly correlated systems http://link.aps.org/doi/10.1103/PhysRevB.80.115130 Author(s): Zhe Qu, Jin Peng, Tijiang Liu, David Fobes, Leonard Spinu, and Zhiqiang Mao<br/>The magnetic ground state of (Sr_{1−x} Ca_{x} )_{3} Ru_{2} O_{7} (0≤x≤1) is complex, ranging from an itinerant metamagnetic state (0≤x<0.08) to an unusual heavy-mass nearly ferromagnetic (FM) state (0.08<x<0.4) , and finally to an antiferromagnetic (AFM) state (0.4≤x≤1) . In this report we elucidate the electronic properties for these magnetic states, and show that the electronic and magnetic properties are strongly coupled in this system. The electronic ground state evolves from an AFM quasi-two-dimensional metal for x=1.0 to an Anderson localized state for 0.4≤x<1.0 (the AFM region). When the magnetic state undergoes a transition from the AFM to the nearly FM state, the electronic ground state switches to a weakly localized state induced by magnetic scattering for 0.25≤x<0.4 , and then to a magnetic metallic state with the in-plane resistivity ρ_{ab} ∝T^{α} (α>2) for 0.08<x<0.25 . The system eventually transforms into a Fermi-liquid ground state when the magnetic ground state enters the itinerant metamagnetic state for x<0.08 . When x approaches the critical composition (x∼0.08) , the Fermi-liquid temperature is suppressed to zero Kelvin, and non-Fermi-liquid behavior is observed. These results demonstrate the strong interplay between the charge and spin degrees of freedom in the double-layered ruthenates.<br/>[Phys. Rev. B 80, 115130] Published Wed Sep 30, 2009 Zhe Qu, Jin Peng, Tijiang Liu, David Fobes, Leonard Spinu, and Zhiqiang Mao 2009-09-30T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.80.115130 Phys. Rev. B 80, 115130 text/html article Physical Review B 80 11 2009-09-30T00:00:00-04:00 115130 Electronic structure: wide-band, narrow-band, and strongly correlated systems Electronic structure: wide-band, narrow-band, and strongly correlated systems