Spin-phonon coupling in CuO2 layers: Asymmetric crystal field approach

被引：2
作者：
Sherman, EY
机构：
[1] Moscow Inst. of Phys. and Technology
来源：
SOLID STATE COMMUNICATIONS | 1997年 / 104卷 / 10期
关键词：
high-T-c superconductors; electron-phonon interactions; spin dynamics; neutron scattering;
D O I：
10.1016/S0038-1098(97)00383-9
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
A model of hole-phonon interaction under strong Hubbard repulsion at Cu sites in CuO2 layers is considered. It is shown that charge fluctuations induced by the out-of-phase B-1g ''oxygen'' phonon lead to a considerable modulation of the superexchange parameter J while the fully-symmetrical A(1g) vibration causes its less significant changes. (C) 1997 Elsevier Science Ltd.
引用
收藏
页码：619 / 622
页数：4
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