TY - JOUR
T1 - Electron-phonon interaction in correlated cuprate superconductors
AU - Ishihara, Sumio
AU - Nagaosa, Naoto
N1 - Funding Information:
This work is supported by KAKENHI from MEXT. Part of the numerical calculation has been performed by the supercomputer facilities in IMR, Tohoku University.
PY - 2006/1
Y1 - 2006/1
N2 - Electron-phonon interaction in the strongly correlated superconducting cuprates is studied. Two types of the electron-phonon interactions, i.e. the diagonal and off-diagonal interactions which modify the formation energy of the Zhang-Rice singlet and its transfer integral, respectively, are introduced in the t-J model. The characteristic phonon-momentum and electron-momentum dependence which are resulted from the off-diagonal coupling can explain a variety of experiments. We show that the vertex correction for the electron-phonon interaction enhances the attractive potential for the d-wave pairing.
AB - Electron-phonon interaction in the strongly correlated superconducting cuprates is studied. Two types of the electron-phonon interactions, i.e. the diagonal and off-diagonal interactions which modify the formation energy of the Zhang-Rice singlet and its transfer integral, respectively, are introduced in the t-J model. The characteristic phonon-momentum and electron-momentum dependence which are resulted from the off-diagonal coupling can explain a variety of experiments. We show that the vertex correction for the electron-phonon interaction enhances the attractive potential for the d-wave pairing.
KW - D. Electronic structure
KW - D. Phonons
KW - D. Super conductivity
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U2 - 10.1016/j.jpcs.2005.10.053
DO - 10.1016/j.jpcs.2005.10.053
M3 - Article
AN - SCOPUS:33645033350
VL - 67
SP - 154
EP - 156
JO - Journal of Physics and Chemistry of Solids
JF - Journal of Physics and Chemistry of Solids
SN - 0022-3697
IS - 1-3
ER -