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Peng YY, Fumagalli R, Ding Y, Minola M, Caprara S, Betto D, Bluschke M, De Luca GM, Kummer K, Lefrançois E, Salluzzo M, Suzuki H, Le Tacon M, Zhou XJ, Brookes NB, Keimer B, Braicovich L, Grilli M, Ghiringhelli G. Re-entrant charge order in overdoped (Bi,Pb) 2.12Sr 1.88CuO 6+δ outside the pseudogap regime. NATURE MATERIALS 2018; 17:697-702. [PMID: 29891891 DOI: 10.1038/s41563-018-0108-3] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2017] [Accepted: 05/14/2018] [Indexed: 06/08/2023]
Abstract
In the underdoped regime, the cuprate high-temperature superconductors exhibit a host of unusual collective phenomena, including unconventional spin and charge density modulations, Fermi surface reconstructions, and a pseudogap in various physical observables. Conversely, overdoped cuprates are generally regarded as conventional Fermi liquids possessing no collective electronic order. In partial contradiction to this widely held picture, we report resonant X-ray scattering measurements revealing incommensurate charge order reflections for overdoped (Bi,Pb)2.12Sr1.88CuO6+δ (Bi2201), with correlation lengths of 40-60 lattice units, that persist up to temperatures of at least 250 K. The value of the charge order wavevector decreases with doping, in line with the extrapolation of the trend previously observed in underdoped Bi2201. In overdoped materials, however, charge order coexists with a single, unreconstructed Fermi surface without nesting or pseudogap features. The discovery of re-entrant charge order in Bi2201 thus calls for investigations in other cuprate families and for a reconsideration of theories that posit an essential relationship between these phenomena.
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Affiliation(s)
- Y Y Peng
- Dipartimento di Fisica, Politecnico di Milano, Milano, Italy
- Department of Physics and Seitz Materials Research Laboratory, University of Illinois, Urbana, IL, USA
| | - R Fumagalli
- Dipartimento di Fisica, Politecnico di Milano, Milano, Italy
| | - Y Ding
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing, China
| | - M Minola
- Max-Planck-Institut für Festkörperforschung, Stuttgart, Germany
| | - S Caprara
- Dipartimento di Fisica, Università di Roma 'La Sapienza', Roma, Italy
- CNR-ISC, Roma, Italy
| | - D Betto
- ESRF, The European Synchrotron, Grenoble, France
| | - M Bluschke
- Max-Planck-Institut für Festkörperforschung, Stuttgart, Germany
| | - G M De Luca
- Dipartimento di Fisica 'E. Pancini', Università di Napoli Federico II, Napoli, Italy
- CNR-SPIN, Napoli, Italy
| | - K Kummer
- ESRF, The European Synchrotron, Grenoble, France
| | - E Lefrançois
- Max-Planck-Institut für Festkörperforschung, Stuttgart, Germany
| | | | - H Suzuki
- Max-Planck-Institut für Festkörperforschung, Stuttgart, Germany
| | - M Le Tacon
- Institute of Solid State Physics (IFP), Karlsruhe Institute of Technology, Karlsruhe, Germany
| | - X J Zhou
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing, China
| | - N B Brookes
- ESRF, The European Synchrotron, Grenoble, France
| | - B Keimer
- Max-Planck-Institut für Festkörperforschung, Stuttgart, Germany
| | - L Braicovich
- Dipartimento di Fisica, Politecnico di Milano, Milano, Italy
- ESRF, The European Synchrotron, Grenoble, France
| | - M Grilli
- Dipartimento di Fisica, Università di Roma 'La Sapienza', Roma, Italy
- CNR-ISC, Roma, Italy
| | - G Ghiringhelli
- Dipartimento di Fisica, Politecnico di Milano, Milano, Italy.
- CNR-SPIN, Dipartimento di Fisica, Politecnico di Milano, Milano, Italy.
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Affiliation(s)
- Guo-meng Zhao
- a Physik-Institut der Universität Zürich , CH-8057 Zürich, Switzerland
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Ribeiro TC, Wen XG. Tunneling spectra of layered strongly correlated d-wave superconductors. PHYSICAL REVIEW LETTERS 2006; 97:057003. [PMID: 17026133 DOI: 10.1103/physrevlett.97.057003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2005] [Indexed: 05/12/2023]
Abstract
Tunneling conductance experiments on cuprate superconductors exhibit a large diversity of spectra that appear in different nanosized regions of inhomogeneous samples. In this Letter, we use a mean-field approach to the tt't''J model in order to address the features in these spectra that deviate from the BCS paradigm, namely, the bias sign asymmetry at high bias, the generic lack of evidence for the van Hove singularity, and the absence of coherence peaks at low dopings. We conclude that these features can be reproduced in homogeneous layered d-wave superconductors solely due to a proximate Mott insulating transition. We also establish the connection between the above tunneling spectral features and the strong renormalization of the electron dispersion around (0, pi) and (pi, 0) and the momentum space anisotropy of electronic states observed in angle-resolved photoemission spectroscopy experiments.
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Affiliation(s)
- Tiago C Ribeiro
- Department of Physics, University of California, Berkeley, CA 94720, USA
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Wilson JA. Structural matters in HTSC: the origin and form of stripe organization and checkerboarding. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2006; 18:R69-R99. [PMID: 21697557 DOI: 10.1088/0953-8984/18/6/r02] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
The paper deals with the controversial charge and spin self-organization phenomena in the HTSC cuprates, of which neutron, x-ray, STM and ARPES experiments give complementary, sometimes apparently contradictory glimpses. The examination has been set in the context of the boson-fermion, negative-U understanding of HTSC advocated over many years by the author. Stripe models are developed which are 2-q in nature and diagonal in form. For such a geometry to be compatible with the data rests upon both the spin and charge arrays being face-centred. Various special doping concentrations are closely looked at, in particular p = 0.1836 or 9/49, which is associated with the maximization of the superconducting condensation energy and the termination of the pseudogap regime. The stripe models are dictated by real space organization of the holes, whereas the dispersionless checkerboarding is interpreted in terms of correlation driven collapse of normal Fermi surface behaviour and response functions. The incommensurate spin diffraction below the 'resonance energy' is seen as in no way expressing spin-wave physics or Fermi surface nesting, but is driven by charge and strain (Jahn-Teller) considerations, and it stands virtually without dispersion. The apparent dispersion comes from the downward dispersion of the resonance peak, and the growth of a further incoherent commensurate peak pursuant upon the falling level of charge stripe organization under excitation.
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Affiliation(s)
- John A Wilson
- H H Wills Physics Laboratory, University of Bristol, Bristol BS8 1TL, UK
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Lorenzana J, Seibold G. Metallic mean-field stripes, incommensurability, and chemical potential in cuprates. PHYSICAL REVIEW LETTERS 2002; 89:136401. [PMID: 12225044 DOI: 10.1103/physrevlett.89.136401] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2002] [Indexed: 05/23/2023]
Abstract
We perform a systematic slave-boson mean-field analysis of the three-band model for cuprates with first-principle parameters. Contrary to widespread belief based on earlier mean-field computations low doping stripes have a linear density close to 1/2 added hole per lattice constant. We find a dimensional crossover from 1D to 2D at doping approximately 0.1 followed by a breaking of particle-hole symmetry around doping 1/8 as doping increases. Our results explain in a simple way the behavior of the chemical potential, the magnetic incommensurability, and transport experiments as a function of doping. Bond centered and site-centered stripes become degenerate for small overdoping.
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Affiliation(s)
- J Lorenzana
- Comisión Nacional de Energía Atómica, Centro Atómico Bariloche and Instituto Balseiro, 8400 S.C. de Bariloche, Argentina
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Sato T, Kamiyama T, Takahashi T, Kurahashi K, Yamada K. Observation of d(x2-y2)-like superconducting gap in an electron-doped high-temperature superconductor. Science 2001; 291:1517-9. [PMID: 11222851 DOI: 10.1126/science.1058021] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
High-resolution angle-resolved photoemission spectroscopy of the electron-doped high-temperature superconductor Nd(2-x)Ce(x)CuO4 (x = 0.15, transition temperature T(c) = 22 K) has found the quasiparticle signature as well as the anisotropic d(x2-y2)-like superconducting gap. The spectral line shape at the superconducting state shows a strong anisotropic nature of the many-body interaction. The result suggests that the electron-hole symmetry is present in the high-temperature superconductors.
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Affiliation(s)
- T Sato
- Department of Physics, Tohoku University, Sendai 980-8578, Japan., Institute for Chemical Research, Kyoto University, Uji 611-0011, Japan
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Strong electron correlation effects in X-ray and photoelectron spectra of high-temperature superconductors. J STRUCT CHEM+ 1999. [DOI: 10.1007/bf02700786] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Sarkar S, Das AN. Specific heat and Knight shift of cuprates within the van Hove scenario. PHYSICAL REVIEW. B, CONDENSED MATTER 1996; 54:14974-14977. [PMID: 9985550 DOI: 10.1103/physrevb.54.14974] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Husslein T, Morgenstern I, Newns DM, Pattnaik PC, Singer JM, Matuttis HG. Quantum Monte Carlo evidence for d-wave pairing in the two-dimensional Hubbard model at a van Hove singularity. PHYSICAL REVIEW. B, CONDENSED MATTER 1996; 54:16179-16182. [PMID: 9985695 DOI: 10.1103/physrevb.54.16179] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Biagini M. Electronic Structure Calculations for YBa2Cu3O7 within the Slave Boson Formalism. PHYSICAL REVIEW LETTERS 1996; 77:4066-4069. [PMID: 10062379 DOI: 10.1103/physrevlett.77.4066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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11
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Yokoya T, Chainani A, Takahashi T, Ding H, Campuzano JC, Katayama-Yoshida H, Kasai M, Tokura Y. Angle-resolved photoemission study of Sr2RuO4. PHYSICAL REVIEW. B, CONDENSED MATTER 1996; 54:13311-13318. [PMID: 9985195 DOI: 10.1103/physrevb.54.13311] [Citation(s) in RCA: 25] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Zhou J, Goodenough JB. Interlayer coupling and the thermopower of cuprate superconductors. PHYSICAL REVIEW. B, CONDENSED MATTER 1996; 54:12488-12492. [PMID: 9985111 DOI: 10.1103/physrevb.54.12488] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Pokrovsky SV, Pokrovsky VL. Density of states and order parameter in dirty anisotropic superconductors. PHYSICAL REVIEW. B, CONDENSED MATTER 1996; 54:13275-13287. [PMID: 9985191 DOI: 10.1103/physrevb.54.13275] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Onufrieva F, Petit S, Sidis Y. Hole dynamics in doped cuprates: High-Tc superconductivity originated from antiferromagnetic exchange as a direct attractive interaction. PHYSICAL REVIEW. B, CONDENSED MATTER 1996; 54:12464-12487. [PMID: 9985110 DOI: 10.1103/physrevb.54.12464] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Gan J, Lee DH, Hedegård P. Composite quasiparticle formation and the low-energy effective Hamiltonians for the one- and two-dimensional Hubbard model. PHYSICAL REVIEW. B, CONDENSED MATTER 1996; 54:7737-7757. [PMID: 9984447 DOI: 10.1103/physrevb.54.7737] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Zhou J, Goodenough JB. Thermopower of Cuprate Superconductors under Hydrostatic Pressure. PHYSICAL REVIEW LETTERS 1996; 77:151-154. [PMID: 10061794 DOI: 10.1103/physrevlett.77.151] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Feiner LF, Jefferson JH, Raimondi R. Intrasublattice Hopping in the Extended t-J Model and Tmaxc in the Cuprates. PHYSICAL REVIEW LETTERS 1996; 76:4939-4942. [PMID: 10061418 DOI: 10.1103/physrevlett.76.4939] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Lu DH, Schmidt M, Cummins TR, Schuppler S, Lichtenberg F, Bednorz JG. Fermi surface and extended van Hove singularity in the noncuprate superconductor Sr2RuO4. PHYSICAL REVIEW LETTERS 1996; 76:4845-4848. [PMID: 10061395 DOI: 10.1103/physrevlett.76.4845] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Coffey D, Coffey L. Quasiparticle lifetimes and signatures of the superconductor order-parameter symmetry in phonon linewidths. PHYSICAL REVIEW. B, CONDENSED MATTER 1996; 53:15292-15299. [PMID: 9983326 DOI: 10.1103/physrevb.53.15292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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20
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Thomas TN, Stevens CJ, Choudhary AJ, Ryan JF, Mihailovic D, Mertelj T, Forro L, Wagner G, Evetts JE. Photoexcited carrier relaxation and localization in Bi2Sr2Ca1-yYyCu2O8 and YBa2Cu3O7- delta : A study by femtosecond time-resolved spectroscopy. PHYSICAL REVIEW. B, CONDENSED MATTER 1996; 53:12436-12440. [PMID: 9982877 DOI: 10.1103/physrevb.53.12436] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Yokoya T, Chainani A, Takahashi T, Katayama-Yoshida H, Kasai M, Tokura Y. Extended Van Hove singularity in a noncuprate layered superconductor Sr2RuO4. PHYSICAL REVIEW LETTERS 1996; 76:3009-3012. [PMID: 10060847 DOI: 10.1103/physrevlett.76.3009] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Wuyts B, Moshchalkov VV, Bruynseraede Y. Resistivity and Hall effect of metallic oxygen-deficient YBa2Cu3Ox films in the normal state. PHYSICAL REVIEW. B, CONDENSED MATTER 1996; 53:9418-9432. [PMID: 9982447 DOI: 10.1103/physrevb.53.9418] [Citation(s) in RCA: 48] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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23
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Abraham E, Barbour IM, Cullen PH, Klepfish EG, Pike ER, Sarkar S. Singularity of the density of states in the two-dimensional Hubbard model from finite-size scaling of Yang-Lee zeros. PHYSICAL REVIEW. B, CONDENSED MATTER 1996; 53:7704-7713. [PMID: 9982214 DOI: 10.1103/physrevb.53.7704] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Alexandrov AS. Bipolaron anisotropic flat bands, Hall mobility edge, and metal-semiconductor duality of overdoped high-Tc oxides. PHYSICAL REVIEW. B, CONDENSED MATTER 1996; 53:2863-2869. [PMID: 9983799 DOI: 10.1103/physrevb.53.2863] [Citation(s) in RCA: 60] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Levin GA, Quader KF. Scaling in spin susceptibility of high-Tc cuprates: A model with nondegenerate fermions. PHYSICAL REVIEW. B, CONDENSED MATTER 1996; 53:R530-R533. [PMID: 9983073 DOI: 10.1103/physrevb.53.r530] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Archibald WB, Zhou JS, Goodenough JB. Transport properties of Cu-O chains in Sr2CuO3+ delta. PHYSICAL REVIEW. B, CONDENSED MATTER 1995; 52:16101-16105. [PMID: 9980993 DOI: 10.1103/physrevb.52.16101] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Beenen J, Edwards DM. Superconductivity in the two-dimensional Hubbard model. PHYSICAL REVIEW. B, CONDENSED MATTER 1995; 52:13636-13651. [PMID: 9980564 DOI: 10.1103/physrevb.52.13636] [Citation(s) in RCA: 40] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Sarkar S, Basu S, Das AN. Pressure coefficient of the superconducting transition temperature within the van Hove scenario. PHYSICAL REVIEW. B, CONDENSED MATTER 1995; 52:12545-12547. [PMID: 9980410 DOI: 10.1103/physrevb.52.12545] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Sherman A, Schreiber M. Strong-coupling superconductivity in the two-dimensional t-J model supplemented by a hole-phonon interaction. PHYSICAL REVIEW. B, CONDENSED MATTER 1995; 52:10621-10625. [PMID: 9980115 DOI: 10.1103/physrevb.52.10621] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Liu SH, Klemm RA. Surface state effects in high-Tc superconductors. PHYSICAL REVIEW. B, CONDENSED MATTER 1995; 52:9657-9673. [PMID: 9980016 DOI: 10.1103/physrevb.52.9657] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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31
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Franck JP, Lawrie DD. The copper isotope effect in oxygen-deficient YBa2Cu3O7?? ACTA ACUST UNITED AC 1995. [DOI: 10.1007/bf00727433] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Hocquet T, Jardin J, Germain P, Labbé J. Dependence of Tc on the physical parameters in single-layered copper oxides. PHYSICAL REVIEW. B, CONDENSED MATTER 1995; 52:10330-10335. [PMID: 9980084 DOI: 10.1103/physrevb.52.10330] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Liu R, Veal BW, Gu C, Paulikas AP, Kostic P, Olson CG. Electronic structure as a function of doping in YBa2Cu3Ox(6.2 <= x <= 6.9) studied by angle-resolved photoemission. PHYSICAL REVIEW. B, CONDENSED MATTER 1995; 52:553-558. [PMID: 9979634 DOI: 10.1103/physrevb.52.553] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Thoma J, Tewari S, Ruvalds J, Rieck CT. Susceptibility and Knight-shift anomalies in cuprate superconductors. PHYSICAL REVIEW. B, CONDENSED MATTER 1995; 51:15393-15401. [PMID: 9978498 DOI: 10.1103/physrevb.51.15393] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Moreo A, Haas S, Sandvik AW, Dagotto E. Quasiparticle dispersion of the t-J and Hubbard models. PHYSICAL REVIEW. B, CONDENSED MATTER 1995; 51:12045-12048. [PMID: 9977969 DOI: 10.1103/physrevb.51.12045] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Singh DJ, Pickett WE. Structural modifications in bismuth cuprates: Effects on the electronic structure and Fermi surface. PHYSICAL REVIEW. B, CONDENSED MATTER 1995; 51:3128-3133. [PMID: 9979097 DOI: 10.1103/physrevb.51.3128] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Rieck CT, Little WA, Ruvalds J, Virosztek A. Infrared and microwave spectra of an energy gap in high-temperature superconductors. PHYSICAL REVIEW. B, CONDENSED MATTER 1995; 51:3772-3782. [PMID: 9979195 DOI: 10.1103/physrevb.51.3772] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Ruvalds J, Rieck CT, Tewari S, Thoma J, Virosztek A. Nesting mechanism for d-symmetry superconductors. PHYSICAL REVIEW. B, CONDENSED MATTER 1995; 51:3797-3805. [PMID: 9979198 DOI: 10.1103/physrevb.51.3797] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Shen ZX, Spicer WE, King DM, Dessau DS, Wells BO. Photoemission Studies of High-
T
c
Superconductors: The Superconducting Gap. Science 1995; 267:343-50. [PMID: 17837480 DOI: 10.1126/science.267.5196.343] [Citation(s) in RCA: 233] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
Over the last several years there have been great improvements in the energy resolution and detection efficiency of angle-resolved photoemission spectroscopy. These improvements have made it possible to discover a number of fascinating features in the electronic structure of the high transition temperature (T(c)) superconductors: apparently bandlike Fermi surfaces, flat-band saddle points, and nested Fermi surface sections. Recent work suggests that these features, previously thought explainable only by one-electron band theory, may be better understood with a many-body approach. Furthermore, other properties of the high-T(c) superconductors, which are difficult to understand with band theory, are well described using a many-body picture. Angle-resolved photoemission spectroscopy has also been used to investigate the nature of the superconducting pairing state, revealing an anisotropic gap consistent with a d-wave order parameter and fueling the current debate over s-wave versus d-wave superconductivity.
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