http://prb.aps.org/ Recently published articles in Phys. Rev. B in the Table of Content section "Superfluidity and superconductivity" en-us Copyright (c) 2009 The American Physical Society 2009-11-05T23:45:20-05:00 assocpub@aps.org rss@aps.org hourly 4 2009-11-05T23:45:20-05:00 rss@aps.org http://link.aps.org/doi/10.1103/PhysRevB.80.184502 Author(s): S. Sharma, S. Shallcross, J. K. Dewhurst, A. Sanna, C. Bersier, S. Massidda, and E. K. U. Gross<br/>Using state-of-the-art first-principles calculations we study the magnetic behavior of CeOFeAs. We find the Ce layer moments oriented perpendicular to those of the Fe layers. An analysis of incommensurate magnetic structures reveals that the Ce-Ce magnetic coupling is rather weak with, however, a st...<br/>[Phys. Rev. B 80, 184502] Published Wed Nov 04, 2009 S. Sharma, S. Shallcross, J. K. Dewhurst, A. Sanna, C. Bersier, S. Massidda, and E. K. U. Gross 2009-11-04T00:00:00-05:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.80.184502 Phys. Rev. B 80, 184502 text/html article Physical Review B 80 18 2009-11-04T00:00:00-05:00 184502 Superfluidity and superconductivity Superfluidity and superconductivity http://link.aps.org/doi/10.1103/PhysRevB.80.174504 Author(s): F. Ancilotto, M. Barranco, and M. Pi<br/>We present theoretical results, based on zero-temperature density-functional theory, for the formation and properties of a negative impurity ion in bulk liquid ^{4} He . We first consider Ca which, due to its very low electron affinity, does not easily form a negative ion in vacuum. We show that a n...<br/>[Phys. Rev. B 80, 174504] Published Wed Nov 04, 2009 F. Ancilotto, M. Barranco, and M. Pi 2009-11-04T00:00:00-05:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.80.174504 Phys. Rev. B 80, 174504 text/html article Physical Review B 80 17 2009-11-04T00:00:00-05:00 174504 Superfluidity and superconductivity Superfluidity and superconductivity http://link.aps.org/doi/10.1103/PhysRevB.80.174503 Author(s): Yu Shi, Yin Yang, and Shao-Ming Fei<br/>We consider a lattice of bosonic atoms, whose number N may be smaller than the number of lattice sites M . We study the Hartree-Fock wave function built up from localized wave functions w(r) of single atoms, with nearest-neighboring overlap. The zero-momentum particle number is expressed in terms of...<br/>[Phys. Rev. B 80, 174503] Published Tue Nov 03, 2009 Yu Shi, Yin Yang, and Shao-Ming Fei 2009-11-03T00:00:00-05:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.80.174503 Phys. Rev. B 80, 174503 text/html article Physical Review B 80 17 2009-11-03T00:00:00-05:00 174503 Superfluidity and superconductivity Superfluidity and superconductivity http://link.aps.org/doi/10.1103/PhysRevB.80.174502 Author(s): Michio Watanabe, Kunihiro Inomata, Tsuyoshi Yamamoto, and Jaw-Shen Tsai<br/>We have studied nonlinear superconducting resonators: λ/2 coplanar-waveguide (CPW) resonators with Josephson junctions (JJs) placed in the middle and λ/4 CPW resonators terminated by JJs, which can be used for the qubit readout as “bifurcation amplifiers.” The nonlinearity of the resonators ar...<br/>[Phys. Rev. B 80, 174502] Published Tue Nov 03, 2009 Michio Watanabe, Kunihiro Inomata, Tsuyoshi Yamamoto, and Jaw-Shen Tsai 2009-11-03T00:00:00-05:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.80.174502 Phys. Rev. B 80, 174502 text/html article Physical Review B 80 17 2009-11-03T00:00:00-05:00 174502 Superfluidity and superconductivity Superfluidity and superconductivity http://link.aps.org/doi/10.1103/PhysRevB.80.172502 Author(s): Wonkee Kim, Yan Chen, and C. S. Ting<br/>Considering the competing spin density wave (SDW) and d -wave superconductivity interactions, we investigate the effects of a nonmagnetic impurity on the vortex-core state of cuprate superconductors within the Bogoliubov–de Gennes formalism. We illustrate that the local SDW order is induced by the...<br/>[Phys. Rev. B 80, 172502] Published Tue Nov 03, 2009 Wonkee Kim, Yan Chen, and C. S. Ting 2009-11-03T00:00:00-05:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.80.172502 Phys. Rev. B 80, 172502 text/html article Physical Review B 80 17 2009-11-03T00:00:00-05:00 172502 Superfluidity and superconductivity Superfluidity and superconductivity http://link.aps.org/doi/10.1103/PhysRevB.80.184501 Author(s): Guangtao Wang, Minping Zhang, Lihua Zheng, and Zongxian Yang<br/>Inspired by the experience in CuO-based superconductor that larger spacing distance between CuO planes induced higher superconductivity transition temperature (T_{C} ) , some researchers synthesized (Sr_{2} ScO_{3} )_{2} Fe_{2} As_{2} and (Sr_{2} VO_{3} )_{2} Fe_{2} As_{2} with the spacing distance ...<br/>[Phys. Rev. B 80, 184501] Published Mon Nov 02, 2009 Guangtao Wang, Minping Zhang, Lihua Zheng, and Zongxian Yang 2009-11-02T00:00:00-05:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.80.184501 Phys. Rev. B 80, 184501 text/html article Physical Review B 80 18 2009-11-02T00:00:00-05:00 184501 Superfluidity and superconductivity Superfluidity and superconductivity http://link.aps.org/doi/10.1103/PhysRevB.80.180502 Author(s): A. Akrap, J. J. Tu, L. J. Li, G. H. Cao, Z. A. Xu, and C. C. Homes<br/>The detailed optical properties of BaFe_{2} As_{2} have been determined over a wide frequency range above and below the structural and magnetic transition at T_{N} ≃138 K . A prominent in-plane infrared-active mode is observed at 253 cm^{−1} (31.4 meV) at 295 K. The frequency of this vibrati...<br/><img src="http://prb.aps.org/files/SuggestionPRB30x30.jpg" alt="PRB Editors' Suggestion"/><br/> <img src="http://prola.aps.org/graphics/rapid30x30.gif" width="30" height="30" alt="Rapid Communication"/><br/>[Phys. Rev. B 80, 180502] Published Mon Nov 02, 2009 A. Akrap, J. J. Tu, L. J. Li, G. H. Cao, Z. A. Xu, and C. C. Homes 2009-11-02T00:00:00-05:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.80.180502 Phys. Rev. B 80, 180502 text/html article Physical Review B 80 18 2009-11-02T00:00:00-05:00 180502 Superfluidity and superconductivity Superfluidity and superconductivity http://link.aps.org/doi/10.1103/PhysRevB.80.180501 Author(s): R. Monaco, J. Mygind, R. J. Rivers, and V. P. Koshelets<br/>We report on the experimental verification of the Zurek-Kibble scenario in an isolated superconducting ring over a wide parameter range. The probability of creating a single flux quantum spontaneously during the fast normal-superconducting phase transition of a wide Nb loop clearly follows a scaling...<br/><img src="http://prb.aps.org/files/SuggestionPRB30x30.jpg" alt="PRB Editors' Suggestion"/><br/> <img src="http://prola.aps.org/graphics/rapid30x30.gif" width="30" height="30" alt="Rapid Communication"/><br/>[Phys. Rev. B 80, 180501] Published Mon Nov 02, 2009 R. Monaco, J. Mygind, R. J. Rivers, and V. P. Koshelets 2009-11-02T00:00:00-05:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.80.180501 Phys. Rev. B 80, 180501 text/html article Physical Review B 80 18 2009-11-02T00:00:00-05:00 180501 Superfluidity and superconductivity Superfluidity and superconductivity http://link.aps.org/doi/10.1103/PhysRevB.80.174501 Author(s): C. E. Campbell and E. Krotscheck<br/>Dynamical excitations in bulk liquid ^{4} He are investigated by using a manifestly microscopic theory of excitations that includes multiple-phonon scattering. The wave function of the dynamic system is represented in terms of one- and two-body excitation amplitudes. Equations of motion for the line...<br/>[Phys. Rev. B 80, 174501] Published Mon Nov 02, 2009 C. E. Campbell and E. Krotscheck 2009-11-02T00:00:00-05:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.80.174501 Phys. Rev. B 80, 174501 text/html article Physical Review B 80 17 2009-11-02T00:00:00-05:00 174501 Superfluidity and superconductivity Superfluidity and superconductivity http://link.aps.org/doi/10.1103/PhysRevB.80.172501 Author(s): Zengwei Zhu, Elena Hassinger, Zhu’an Xu, Dai Aoki, Jacques Flouquet, and Kamran Behnia<br/>In contrast to almost all anisotropic superconductors, the upper critical field of URu_{2} Si_{2} is larger when the field is oriented along the less conducting direction. We present a study of resistivity and Seebeck coefficient extended down to sub-Kelvin temperature range uncovering a singular ca...<br/>[Phys. Rev. B 80, 172501] Published Mon Nov 02, 2009 Zengwei Zhu, Elena Hassinger, Zhu’an Xu, Dai Aoki, Jacques Flouquet, and Kamran Behnia 2009-11-02T00:00:00-05:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.80.172501 Phys. Rev. B 80, 172501 text/html article Physical Review B 80 17 2009-11-02T00:00:00-05:00 172501 Superfluidity and superconductivity Superfluidity and superconductivity http://link.aps.org/doi/10.1103/PhysRevB.80.140516 Author(s): SeongHoon Jung, Jooyeon Kim, E. J. Choi, Y. Sekio, T. Kimura, and J. Lorenzana<br/>We have obtained mid-infrared optical absorption spectra of the S=1/2 quasi-one-dimensional CuO using polarized transmission measurement and interpreted the spectra in terms of phonon-assisted magnetic excitations. When the electric field is parallel to the main antiferromagnetic direction a Δ shap...<br/><img src="http://prola.aps.org/graphics/rapid30x30.gif" width="30" height="30" alt="Rapid Communication"/><br/>[Phys. Rev. B 80, 140516] Published Fri Oct 30, 2009 SeongHoon Jung, Jooyeon Kim, E. J. Choi, Y. Sekio, T. Kimura, and J. Lorenzana 2009-10-30T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.80.140516 Phys. Rev. B 80, 140516 text/html article Physical Review B 80 14 2009-10-30T00:00:00-04:00 140516 Superfluidity and superconductivity Superfluidity and superconductivity http://link.aps.org/doi/10.1103/PhysRevB.80.134524 Author(s): A. A. Gapud, S. Moraes, R. P. Khadka, P. Favreau, C. Henderson, P. C. Canfield, V. G. Kogan, A. P. Reyes, L. L. Lumata, D. K. Christen, and J. R. Thompson<br/>High-density direct currents are used to drive flux quanta via the Lorentz force toward a highly ordered “free flux flow” (FFF) dynamic state, made possible by the weak-pinning environment of high-quality, single-crystal samples of two low- T_{c} superconducting compounds, V_{3} Si and LuNi_{2} ...<br/>[Phys. Rev. B 80, 134524] Published Fri Oct 30, 2009 A. A. Gapud, S. Moraes, R. P. Khadka, P. Favreau, C. Henderson, P. C. Canfield, V. G. Kogan, A. P. Reyes, L. L. Lumata, D. K. Christen, and J. R. Thompson 2009-10-30T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.80.134524 Phys. Rev. B 80, 134524 text/html article Physical Review B 80 13 2009-10-30T00:00:00-04:00 134524 Superfluidity and superconductivity Superfluidity and superconductivity http://link.aps.org/doi/10.1103/PhysRevB.80.132505 Author(s): Shiladitya Chakraborty and Philip Phillips<br/>Starting from the effective low-energy theory of a doped Mott insulator, obtained by exactly integrating out the high-energy scale, we show that the effective carrier density in the underdoped regime agrees with a two-fluid description. Namely, it has distinct temperature-independent and thermally a...<br/>[Phys. Rev. B 80, 132505] Published Fri Oct 30, 2009 Shiladitya Chakraborty and Philip Phillips 2009-10-30T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.80.132505 Phys. Rev. B 80, 132505 text/html article Physical Review B 80 13 2009-10-30T00:00:00-04:00 132505 Superfluidity and superconductivity Superfluidity and superconductivity http://link.aps.org/doi/10.1103/PhysRevB.80.144524 Author(s): Neeraj Kumar, Songxue Chi, Ying Chen, Kumari Gaurav Rana, A. K. Nigam, A. Thamizhavel, William Ratcliff, II, S. K. Dhar, and Jeffrey W. Lynn<br/>Magnetization, susceptibility, specific heat, resistivity, neutron and x-ray diffraction have been used to characterize the properties of single-crystalline CaFe_{2−x} Ni_{x} As_{2} as a function of Ni doping for x varying from 0 to 0.1. The combined first-order structural and magnetic phase trans...<br/>[Phys. Rev. B 80, 144524] Published Thu Oct 29, 2009 Neeraj Kumar, Songxue Chi, Ying Chen, Kumari Gaurav Rana, A. K. Nigam, A. Thamizhavel, William Ratcliff, II, S. K. Dhar, and Jeffrey W. Lynn 2009-10-29T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.80.144524 Phys. Rev. B 80, 144524 text/html article Physical Review B 80 14 2009-10-29T00:00:00-04:00 144524 Superfluidity and superconductivity Superfluidity and superconductivity http://link.aps.org/doi/10.1103/PhysRevB.80.140515 Author(s): A. V. Chubukov, M. G. Vavilov, and A. B. Vorontsov<br/>Using general symmetry arguments and model calculations we analyze the superconducting gap in materials with multiple Fermi-surface pockets, with applications to iron pnictides. We show that the gap in the pnictides has an extended s -wave symmetry but is either nodeless or has nodes, depending on t...<br/><img src="http://prb.aps.org/files/SuggestionPRB30x30.jpg" alt="PRB Editors' Suggestion"/><br/> <img src="http://prola.aps.org/graphics/rapid30x30.gif" width="30" height="30" alt="Rapid Communication"/><br/>[Phys. Rev. B 80, 140515] Published Thu Oct 29, 2009 A. V. Chubukov, M. G. Vavilov, and A. B. Vorontsov 2009-10-29T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.80.140515 Phys. Rev. B 80, 140515 text/html article Physical Review B 80 14 2009-10-29T00:00:00-04:00 140515 Superfluidity and superconductivity Superfluidity and superconductivity http://link.aps.org/doi/10.1103/PhysRevB.80.140514 Author(s): J. Gutierrez, A. V. Silhanek, J. Van de Vondel, W. Gillijns, and V. V. Moshchalkov<br/>We revisit the vortex dynamics in Al thin films containing an artificial periodic array of antidots by means of electrical transport measurements. We clearly identify a turbulent to laminarlike vortex flow transition which manifests itself as a negative differential resistivity. This transition is a...<br/><img src="http://prola.aps.org/graphics/rapid30x30.gif" width="30" height="30" alt="Rapid Communication"/><br/>[Phys. Rev. B 80, 140514] Published Wed Oct 28, 2009 J. Gutierrez, A. V. Silhanek, J. Van de Vondel, W. Gillijns, and V. V. Moshchalkov 2009-10-28T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.80.140514 Phys. Rev. B 80, 140514 text/html article Physical Review B 80 14 2009-10-28T00:00:00-04:00 140514 Superfluidity and superconductivity Superfluidity and superconductivity http://link.aps.org/doi/10.1103/PhysRevB.80.134523 Author(s): S. L. Bud’ko, P. C. Canfield, A. S. Sefat, B. C. Sales, M. A. McGuire, and D. Mandrus<br/>Heat capacity and anisotropic thermal expansion was measured for Fe_{1.06} Te and FeTe_{0.5} Se_{0.5} single crystals. Previously reported phase transitions are clearly seen in both measurements. In both cases the thermal expansion is anisotropic. The uniaxial pressure derivatives of the superconduc...<br/>[Phys. Rev. B 80, 134523] Published Wed Oct 28, 2009 S. L. Bud’ko, P. C. Canfield, A. S. Sefat, B. C. Sales, M. A. McGuire, and D. Mandrus 2009-10-28T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.80.134523 Phys. Rev. B 80, 134523 text/html article Physical Review B 80 13 2009-10-28T00:00:00-04:00 134523 Superfluidity and superconductivity Superfluidity and superconductivity http://link.aps.org/doi/10.1103/PhysRevB.80.134522 Author(s): E. E. Dvash, I. Shapiro, and B. Ya. Shapiro<br/>The thermomagnetic instability of the Bean critical state in a layered type-II superconducting slab subjected to an external magnetic field increasing with constant rate is studied theoretically. It is shown that the strong anisotropy of thermal conductivity significantly affects the instability ons...<br/>[Phys. Rev. B 80, 134522] Published Tue Oct 27, 2009 E. E. Dvash, I. Shapiro, and B. Ya. Shapiro 2009-10-27T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.80.134522 Phys. Rev. B 80, 134522 text/html article Physical Review B 80 13 2009-10-27T00:00:00-04:00 134522 Superfluidity and superconductivity Superfluidity and superconductivity http://link.aps.org/doi/10.1103/PhysRevB.80.132504 Author(s): Alexander Wollny and Matthias Vojta<br/>Motivated by experiments on La_{2−x} Ba_{x} CuO_{4} which suggest that stripe order coexists with two-dimensional pairing without interlayer phase coherence, we determine the interlayer Josephson coupling in the presence of stripe order. We employ a mean-field description of bond-centered stripes,...<br/>[Phys. Rev. B 80, 132504] Published Tue Oct 27, 2009 Alexander Wollny and Matthias Vojta 2009-10-27T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.80.132504 Phys. Rev. B 80, 132504 text/html article Physical Review B 80 13 2009-10-27T00:00:00-04:00 132504 Superfluidity and superconductivity Superfluidity and superconductivity http://link.aps.org/doi/10.1103/PhysRevB.80.140513 Author(s): E. Lengyel, M. Nicklas, H. S. Jeevan, G. Sparn, C. Geibel, F. Steglich, Y. Yoshioka, and K. Miyake<br/>Low-temperature (T) heat-capacity measurements under hydrostatic pressure of up to p≈2.1 GPa have been performed on single-crystalline CeCu_{2} Si_{2} . A broad superconducting (SC) region exists in the T-p phase diagram. In the low-pressure region antiferromagnetic spin fluctuations and in the ...<br/><img src="http://prb.aps.org/files/SuggestionPRB30x30.jpg" alt="PRB Editors' Suggestion"/><br/> <img src="http://prola.aps.org/graphics/rapid30x30.gif" width="30" height="30" alt="Rapid Communication"/><br/>[Phys. Rev. B 80, 140513] Published Mon Oct 26, 2009 E. Lengyel, M. Nicklas, H. S. Jeevan, G. Sparn, C. Geibel, F. Steglich, Y. Yoshioka, and K. Miyake 2009-10-26T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.80.140513 Phys. Rev. B 80, 140513 text/html article Physical Review B 80 14 2009-10-26T00:00:00-04:00 140513 Superfluidity and superconductivity Superfluidity and superconductivity http://link.aps.org/doi/10.1103/PhysRevB.80.140512 Author(s): D. J. Scalapino and T. P. Devereaux<br/>Calculations of the pairing interaction in multiband models of the Fe superconductors show that it is attractive in both the A_{1g} ( s -wave) and B_{1g} ( d -wave) channels. This raises the possibility that these materials may have collective excitonic modes. Here, assuming an s -wave ground state,...<br/><img src="http://prb.aps.org/files/SuggestionPRB30x30.jpg" alt="PRB Editors' Suggestion"/><br/> <img src="http://prola.aps.org/graphics/rapid30x30.gif" width="30" height="30" alt="Rapid Communication"/><br/>[Phys. Rev. B 80, 140512] Published Mon Oct 26, 2009 D. J. Scalapino and T. P. Devereaux 2009-10-26T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.80.140512 Phys. Rev. B 80, 140512 text/html article Physical Review B 80 14 2009-10-26T00:00:00-04:00 140512 Superfluidity and superconductivity Superfluidity and superconductivity http://link.aps.org/doi/10.1103/PhysRevB.80.140511 Author(s): R. Khasanov, M. Bendele, A. Amato, P. Babkevich, A. T. Boothroyd, A. Cervellino, K. Conder, S. N. Gvasaliya, H. Keller, H.-H. Klauss, H. Luetkens, V. Pomjakushin, E. Pomjakushina, and B. Roessli<br/>We have studied the superconducting and magnetic properties of Fe_{1+y} Se_{x} Te_{1−x} single crystals (0≤x≤0.5) by magnetic susceptibility, muon-spin rotation, and neutron diffraction. We find three regimes of behavior: (i) commensurate magnetic order for x≲0.1 , (ii) bulk superconductivit...<br/><img src="http://prb.aps.org/files/SuggestionPRB30x30.jpg" alt="PRB Editors' Suggestion"/><br/> <img src="http://prola.aps.org/graphics/rapid30x30.gif" width="30" height="30" alt="Rapid Communication"/><br/>[Phys. Rev. B 80, 140511] Published Mon Oct 26, 2009 R. Khasanov, M. Bendele, A. Amato, P. Babkevich, A. T. Boothroyd, A. Cervellino, K. Conder, S. N. Gvasaliya, H. Keller, H.-H. Klauss, H. Luetkens, V. Pomjakushin, E. Pomjakushina, and B. Roessli 2009-10-26T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.80.140511 Phys. Rev. B 80, 140511 text/html article Physical Review B 80 14 2009-10-26T00:00:00-04:00 140511 Superfluidity and superconductivity Superfluidity and superconductivity http://link.aps.org/doi/10.1103/PhysRevB.80.134521 Author(s): Alexander Mihlin and Assa Auerbach<br/>A model of charged hole-pair bosons with long-range Coulomb interactions and very weak interlayer coupling is used to calculate the order parameter Φ of underdoped cuprates. Model parameters are extracted from experimental superfluid densities and plasma frequencies. The temperature dependence Φ(T...<br/>[Phys. Rev. B 80, 134521] Published Mon Oct 26, 2009 Alexander Mihlin and Assa Auerbach 2009-10-26T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.80.134521 Phys. Rev. B 80, 134521 text/html article Physical Review B 80 13 2009-10-26T00:00:00-04:00 134521 Superfluidity and superconductivity Superfluidity and superconductivity http://link.aps.org/doi/10.1103/PhysRevB.80.134520 Author(s): S. Garcia, S. Andrade, R. F. Jardim, F. C. Fonseca, M. S. Torikachvili, and A. H. Lacerda<br/>A systematic study of magnetoresistance and dc magnetization was conducted in polycrystalline (Ru_{1−x} Ir_{x} )Sr_{2} GdCu_{2} O_{8} [(Ru,Ir)-1212] compounds, for 0≤x≤0.15 . We found that a deviation from linearity in the normal-state electrical resistivity (ρ) curves for temperatures below ...<br/>[Phys. Rev. B 80, 134520] Published Mon Oct 26, 2009 S. Garcia, S. Andrade, R. F. Jardim, F. C. Fonseca, M. S. Torikachvili, and A. H. Lacerda 2009-10-26T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.80.134520 Phys. Rev. B 80, 134520 text/html article Physical Review B 80 13 2009-10-26T00:00:00-04:00 134520 Superfluidity and superconductivity Superfluidity and superconductivity http://link.aps.org/doi/10.1103/PhysRevB.80.144523 Author(s): P. G. Freeman, M. Enderle, S. M. Hayden, C. D. Frost, D. X. Yao, E. W. Carlson, D. Prabhakaran, and A. T. Boothroyd<br/>Polarized- and unpolarized-neutron scattering measurements of the spin excitation spectrum in the stripe-ordered phase of La_{2} NiO_{4+δ} (δ≃0.11) are presented. At low energies, the magnetic spectral weight is found to shift anomalously toward the two-dimensional antiferromagnetic wave vector,...<br/>[Phys. Rev. B 80, 144523] Published Fri Oct 23, 2009 P. G. Freeman, M. Enderle, S. M. Hayden, C. D. Frost, D. X. Yao, E. W. Carlson, D. Prabhakaran, and A. T. Boothroyd 2009-10-23T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.80.144523 Phys. Rev. B 80, 144523 text/html article Physical Review B 80 14 2009-10-23T00:00:00-04:00 144523 Superfluidity and superconductivity Superfluidity and superconductivity http://link.aps.org/doi/10.1103/PhysRevB.80.134519 Author(s): Guodong Liu, Haiyun Liu, Lin Zhao, Wentao Zhang, Xiaowen Jia, Jianqiao Meng, Xiaoli Dong, Jun Zhang, G. F. Chen, Guiling Wang, Yong Zhou, Yong Zhu, Xiaoyang Wang, Zuyan Xu, Chuangtian Chen, and X. J. Zhou<br/>High-resolution angle-resolved photoemission measurements have been carried out on BaFe_{2} As_{2} , a parent compound of the FeAs-based superconductors. In the magnetic ordering state, there is no gap opening observed on the Fermi surface. Instead, dramatic band-structure reorganization occurs acro...<br/>[Phys. Rev. B 80, 134519] Published Fri Oct 23, 2009 Guodong Liu, Haiyun Liu, Lin Zhao, Wentao Zhang, Xiaowen Jia, Jianqiao Meng, Xiaoli Dong, Jun Zhang, G. F. Chen, Guiling Wang, Yong Zhou, Yong Zhu, Xiaoyang Wang, Zuyan Xu, Chuangtian Chen, and X. J. Zhou 2009-10-23T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.80.134519 Phys. Rev. B 80, 134519 text/html article Physical Review B 80 13 2009-10-23T00:00:00-04:00 134519 Superfluidity and superconductivity Superfluidity and superconductivity http://link.aps.org/doi/10.1103/PhysRevB.80.134518 Author(s): W. Chen, Brian M. Andersen, and P. J. Hirschfeld<br/>We propose that the experimentally observed resistivity upturn of cuprates at low temperatures may be explained by properly accounting for the effects of disorder in a strongly correlated metallic host. Within a calculation of the dc conductivity using real-space diagonalization of a Hubbard model t...<br/>[Phys. Rev. B 80, 134518] Published Fri Oct 23, 2009 W. Chen, Brian M. Andersen, and P. J. Hirschfeld 2009-10-23T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.80.134518 Phys. Rev. B 80, 134518 text/html article Physical Review B 80 13 2009-10-23T00:00:00-04:00 134518 Superfluidity and superconductivity Superfluidity and superconductivity http://link.aps.org/doi/10.1103/PhysRevB.80.144522 Author(s): Z. P. Yin and W. E. Pickett<br/>Superconductivity arises in the layered iron-pnictide compounds when magnetic long-range order disappears. We use first-principles density-functional methods to study magnetic arrangements that may compete with long-range order near the phase boundary. Specifically, we study the energetics and charg...<br/>[Phys. Rev. B 80, 144522] Published Thu Oct 22, 2009 Z. P. Yin and W. E. Pickett 2009-10-22T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.80.144522 Phys. Rev. B 80, 144522 text/html article Physical Review B 80 14 2009-10-22T00:00:00-04:00 144522 Superfluidity and superconductivity Superfluidity and superconductivity http://link.aps.org/doi/10.1103/PhysRevB.80.140510 Author(s): I. A. Nekrasov, N. S. Pavlov, E. Z. Kuchinskii, M. V. Sadovskii, Z. V. Pchelkina, V. B. Zabolotnyy, J. Geck, B. Büchner, S. V. Borisenko, D. S. Inosov, A. A. Kordyuk, M. Lambacher, and A. Erb<br/>The electron-doped Pr_{2−x} Ce_{x} CuO_{4} (PCCO) compound in the pseudogap regime (x≈0.15) was investigated using the angle-resolved photoemission spectroscopy and the generalized dynamical mean-field theory (DMFT) with the k -dependent self-energy (LDA+DMFT+Σ_{k} ) . Model parameters (hopping...<br/><img src="http://prola.aps.org/graphics/rapid30x30.gif" width="30" height="30" alt="Rapid Communication"/><br/>[Phys. Rev. B 80, 140510] Published Thu Oct 22, 2009 I. A. Nekrasov, N. S. Pavlov, E. Z. Kuchinskii, M. V. Sadovskii, Z. V. Pchelkina, V. B. Zabolotnyy, J. Geck, B. Büchner, S. V. Borisenko, D. S. Inosov, A. A. Kordyuk, M. Lambacher, and A. Erb 2009-10-22T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.80.140510 Phys. Rev. B 80, 140510 text/html article Physical Review B 80 14 2009-10-22T00:00:00-04:00 140510 Superfluidity and superconductivity Superfluidity and superconductivity http://link.aps.org/doi/10.1103/PhysRevB.80.134517 Author(s): Clemens Müller, Alexander Shnirman, and Yuriy Makhlin<br/>We investigate the energy relaxation (T_{1} ) process of a qubit coupled to a bath of dissipative two-level fluctuators (TLFs). We consider the fluctuators strongly coupled to the qubit both in the limit of spectrally sparse single TLFs as well as in the limit of spectrally dense TLFs. We conclude t...<br/>[Phys. Rev. B 80, 134517] Published Thu Oct 22, 2009 Clemens Müller, Alexander Shnirman, and Yuriy Makhlin 2009-10-22T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.80.134517 Phys. Rev. B 80, 134517 text/html article Physical Review B 80 13 2009-10-22T00:00:00-04:00 134517 Superfluidity and superconductivity Superfluidity and superconductivity