TY - JOUR
T1 - Role of the electron-phonon interaction in the strongly correlated cuprate superconductors
AU - Shen, Z. X.
AU - Lanzara, A.
AU - Ishihara, S.
AU - Nagaosa, N.
N1 - Funding Information:
ACKNOWLEDGEMENTS We would like to acknowledge P. V. Bogdanov, X. J. Zhou and S. A. Keller for experimental help. We would like to thank G. A. Sawatzky, P. Allen, A. Bianconi, T. Egami, S. A. Kivelson, R. B. Laughlin, K. A. Muller, D. Mihailovic and D. J. Scalapino for useful discussion. Work at the Stanford Synchrotron Radiation Laboratory was supported by the US Department of Energy, Office of Basic Energy Science, Division of Materials Science. The work at the Lawrence Berkeley NationaI Laboratory was supported by the Office of Division of Materials Science under contract DE-AC0376SF00098. One of us (A.L.) would like to thank the Iiistituto Nazionale per la Fisica della Materia. This work is supported by a grant-in-aid from Ministry of Education, Culture, Sports, Science and Technology of Japan.
PY - 2002/9
Y1 - 2002/9
N2 - Using high-resolution angle-resolved photoemission data in conjunction with that from neutron and other probes, we show that electron-phonon coupling is strong in cuprate superconductors and that it plays an important role in pairing. In addition to the strong electron correlation, the inclusion of phonons provides a theoretical framework explaining many important phenomena that cannot be understood by a strongly correlated electronic model alone. In particular, it is indispensable to explain the difference among materials. The phonons with the wavenumber around the (0, qy) and (qx, 0) axes create d-wave pairing while that near (π, π) are pair breaking. Therefore the half-breathing mode of the oxygen motions helps d-wave superconductivity.
AB - Using high-resolution angle-resolved photoemission data in conjunction with that from neutron and other probes, we show that electron-phonon coupling is strong in cuprate superconductors and that it plays an important role in pairing. In addition to the strong electron correlation, the inclusion of phonons provides a theoretical framework explaining many important phenomena that cannot be understood by a strongly correlated electronic model alone. In particular, it is indispensable to explain the difference among materials. The phonons with the wavenumber around the (0, qy) and (qx, 0) axes create d-wave pairing while that near (π, π) are pair breaking. Therefore the half-breathing mode of the oxygen motions helps d-wave superconductivity.
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U2 - 10.1080/13642810208220725
DO - 10.1080/13642810208220725
M3 - Article
AN - SCOPUS:0037057189
SN - 1364-2812
VL - 82
SP - 1349
EP - 1368
JO - Philosophical Magazine B: Physics of Condensed Matter; Statistical Mechanics, Electronic, Optical and Magnetic Properties
JF - Philosophical Magazine B: Physics of Condensed Matter; Statistical Mechanics, Electronic, Optical and Magnetic Properties
IS - 13
ER -