Enhanced electron-phonon coupling and its irrelevance to high Tc superconductivity

被引：21

作者：

Devereaux, TP ^{[1
]}

Virosztek, A

Zawadowski, A

Opel, M

Muller, PF

Hoffmann, C

Philipp, R

Nemetschek, R

Hackl, R

Erb, A

Walker, E

Berger, H

Forro, L

机构：

[1] George Washington Univ, Dept Phys, Washington, DC 20052 USA

[2] Tech Univ Budapest, Inst Phys, Hungarian Acad Sci, H-1521 Budapest, Hungary

[3] Tech Univ Budapest, Res Grp, Hungarian Acad Sci, H-1521 Budapest, Hungary

[4] Hungarian Acad Sci, Solid State Phys Res Inst, H-1525 Budapest, Hungary

[5] Bayer Akad Wissensch, Walther Meissner Inst, D-85748 Garching, Germany

[6] Univ Geneva, DPMC, CH-1211 Geneva, Switzerland

[7] Ecole Polytech Fed Lausanne, Ecublens, CH-1015 Lausanne, Switzerland

来源：

SOLID STATE COMMUNICATIONS | 1998年 / 108卷 / 07期

基金：

匈牙利科学研究基金会;

关键词：

high-T-c superconductors; crystal and ligand fields; electron-phonon interactions; inelastic light scattering;

D O I：

10.1016/S0038-1098(98)00424-4

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

It is argued that the origin of the buckling of the CuO2 planes in certain cuprates as well as the strong electron-phonon coupling of the B-1g phonon is due to the electric field across the planes induced by atoms with different valence above and below. The magnitude of the electric field is deduced from new Raman results on YBa2Cu3O6+x and Bi2Sr2(Ca1 - xYx)Cu2O8 With different O and Y doping, respectively. In the latter case it is shown that the symmetry breaking by replacing Ca partially by Y enhances the coupling by an order of magnitude, while the superconducting Te drops to about two third of its original value. (C) 1998 Elsevier Science Ltd. All rights reserved.

引用

页码：407 / 411

页数：5

共 50 条

[1] LATTICE INSTABILITY AND STRONG ELECTRON-PHONON COUPLING FOR HIGH-TC SUPERCONDUCTIVITY
PLAKIDA, NM
PHYSICA SCRIPTA, 1989, T29 : 77 - 81
[2] LATTICE INSTABILITY AND STRONG ELECTRON-PHONON COUPLING FOR HIGH-TC SUPERCONDUCTIVITY
PLAKIDA, NM
PHYSICA C, 1989, 162 (pt2): : 1341 - 1342
[3] Nonadiabatic electron-phonon coupling and its effects on superconductivity
Hu, Shi-Qi
Liu, Xin-Bao
Chen, Da-Qiang
Lian, Chao
Wang, En-Ge
Meng, Sheng
PHYSICAL REVIEW B, 2022, 105 (22)
[4] Superconductivity and electron-phonon coupling in lithium at high pressures
Bazhirov, Timur
Noffsinger, Jesse
Cohen, Marvin L.
PHYSICAL REVIEW B, 2010, 82 (18)
[5] ELECTRON-PHONON INDUCED SUPERCONDUCTIVITY IN HIGH-TC SUPERCONDUCTORS
SINGH, P
PRAMANA, 1987, 29 (05) : L523 - L525
[6] Electron-phonon coupling in high-Tc superconductors
Egami, T
SUPERCONDUCTIVITY IN COMPLEX SYSTEMS, 2005, 114 : 267 - 285
[7] Coupled States in Electron-Phonon System, Superconductivity and High Tc Superconductivity of Crystals
Int J Mod Phys B, 21 (2665):
[8] LARGE EXCHANGE ENHANCEMENT OF ELECTRON-PHONON COUPLING AS A POSSIBLE MECHANISM OF HIGH-TC SUPERCONDUCTIVITY
KIM, DJ
JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS, 1987, 26 (05): : L741 - L744
[9] ELECTRON-PHONON COUPLING AS A MECHANISM FOR HIGH-TEMPERATURE SUPERCONDUCTIVITY
FULLERMORA, WW
WOLF, SA
KRESIN, VZ
JOURNAL OF SUPERCONDUCTIVITY, 1994, 7 (03): : 543 - 545
[10] Cavity quantum-electrodynamical polaritonically enhanced electron-phonon coupling and its influence on superconductivity
Sentef, M. A.
Ruggenthaler, M.
Rubio, A.
SCIENCE ADVANCES, 2018, 4 (11):

← 1 2 3 4 5 →