Electron-phonon interaction and electron correlation in high temperature superconductors

Sumio Ishihara; Naoto Nagaosa

doi:10.1016/j.physc.2004.02.101

Electron-phonon interaction and electron correlation in high temperature superconductors

Sumio Ishihara, Naoto Nagaosa

SCI - Physics

Research output: Contribution to journal › Conference article › peer-review

Abstract

Roles of electron-phonon interaction in the strongly correlated cuprates have been investigated theoretically. We have found that the oxygen displacement contributes to the d-wave paring in the region along the (0,0)-(q _x,0) and (0,0)-(0,q_y), where the strong coupling to the electrons is observed experimentally. Being based on the slave-boson picture applied to the t-J model and the Eliashberg theory, roles of electron-phonon interaction in the angle-resolved photoemission spectra (ARPES), tunneling spectra and optical conductivity are investigated. The vertex correction is essential to describe the electron-phonon interaction in the strongly correlated cuprates.

Original language	English
Pages (from-to)	309-310
Number of pages	2
Journal	Physica C: Superconductivity and its applications
Volume	408-410
Issue number	1-4
DOIs	https://doi.org/10.1016/j.physc.2004.02.101
Publication status	Published - 2004 Aug
Event	Proceedings of the International Conference on Materials - Rio de Janeiro, Brazil Duration: 2003 May 25 → 2003 May 30

Keywords

ARPES
Electron correlation
Electron-phonon interaction
Phonon softening

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Energy Engineering and Power Technology
Electrical and Electronic Engineering

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10.1016/j.physc.2004.02.101

Cite this

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title = "Electron-phonon interaction and electron correlation in high temperature superconductors",

abstract = "Roles of electron-phonon interaction in the strongly correlated cuprates have been investigated theoretically. We have found that the oxygen displacement contributes to the d-wave paring in the region along the (0,0)-(q x,0) and (0,0)-(0,qy), where the strong coupling to the electrons is observed experimentally. Being based on the slave-boson picture applied to the t-J model and the Eliashberg theory, roles of electron-phonon interaction in the angle-resolved photoemission spectra (ARPES), tunneling spectra and optical conductivity are investigated. The vertex correction is essential to describe the electron-phonon interaction in the strongly correlated cuprates.",

keywords = "ARPES, Electron correlation, Electron-phonon interaction, Phonon softening",

author = "Sumio Ishihara and Naoto Nagaosa",

note = "Funding Information: This work is supported by KAKENHI from MEXT, Japan and Yamada Foundation.; Proceedings of the International Conference on Materials ; Conference date: 25-05-2003 Through 30-05-2003",

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doi = "10.1016/j.physc.2004.02.101",

language = "English",

volume = "408-410",

pages = "309--310",

journal = "Physica C: Superconductivity and its Applications",

issn = "0921-4534",

publisher = "Elsevier",

number = "1-4",

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TY - JOUR

T1 - Electron-phonon interaction and electron correlation in high temperature superconductors

AU - Ishihara, Sumio

AU - Nagaosa, Naoto

N1 - Funding Information: This work is supported by KAKENHI from MEXT, Japan and Yamada Foundation.

PY - 2004/8

Y1 - 2004/8

N2 - Roles of electron-phonon interaction in the strongly correlated cuprates have been investigated theoretically. We have found that the oxygen displacement contributes to the d-wave paring in the region along the (0,0)-(q x,0) and (0,0)-(0,qy), where the strong coupling to the electrons is observed experimentally. Being based on the slave-boson picture applied to the t-J model and the Eliashberg theory, roles of electron-phonon interaction in the angle-resolved photoemission spectra (ARPES), tunneling spectra and optical conductivity are investigated. The vertex correction is essential to describe the electron-phonon interaction in the strongly correlated cuprates.

AB - Roles of electron-phonon interaction in the strongly correlated cuprates have been investigated theoretically. We have found that the oxygen displacement contributes to the d-wave paring in the region along the (0,0)-(q x,0) and (0,0)-(0,qy), where the strong coupling to the electrons is observed experimentally. Being based on the slave-boson picture applied to the t-J model and the Eliashberg theory, roles of electron-phonon interaction in the angle-resolved photoemission spectra (ARPES), tunneling spectra and optical conductivity are investigated. The vertex correction is essential to describe the electron-phonon interaction in the strongly correlated cuprates.

KW - ARPES

KW - Electron correlation

KW - Electron-phonon interaction

KW - Phonon softening

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DO - 10.1016/j.physc.2004.02.101

M3 - Conference article

AN - SCOPUS:4344576353

VL - 408-410

SP - 309

EP - 310

JO - Physica C: Superconductivity and its Applications

JF - Physica C: Superconductivity and its Applications

SN - 0921-4534

IS - 1-4

T2 - Proceedings of the International Conference on Materials

Y2 - 25 May 2003 through 30 May 2003

ER -

Electron-phonon interaction and electron correlation in high temperature superconductors

Abstract

Keywords

ASJC Scopus subject areas

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