CHARGE FLUCTUATION MECHANISMS FOR HIGH-TEMPERATURE SUPERCONDUCTIVITY

被引：4
|
作者：
LITTLEWOOD, PB
机构：
[1] AT and T Bell Laboratories, Murray Hill
来源：
PHYSICA B | 1990年 / 163卷 / 1-3期
关键词：
D O I：
10.1016/0921-4526(90)90195-Z
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
Some general arguments affecting the likelihood that charge fluctuations can promote superconductivity are discussed, and a calculational framework is presented. Simple exciton and plasmon mechanisms are suggested to be unlikely candidates, as are intraband charge fluctuations nearby a charge-density wave instability. The most successful mechanisms are argued to involve strongly-localised interband, or charge-transfer excitations, and a specific model of a low lying A1g-symmetry mode is discussed in detail. © 1990.
引用
收藏
页码：299 / 305
页数：7
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