Effect of uniaxial stress on T-c and the vanHove scenario in YBa2Cu3O7

被引：1
作者：
Xiang, DY
Liu, M
Wang, ZD
Dong, JM
机构：
[1] NANJING UNIV, NATL LAB SOLID STATE MICROSTRUCT, NANJING 210093, PEOPLES R CHINA
[2] SOUTHEAST UNIV, DEPT PHYS, NANJING 210093, PEOPLES R CHINA
[3] UNIV HONG KONG, DEPT PHYS, HONG KONG, HONG KONG
来源：
ZEITSCHRIFT FUR PHYSIK B-CONDENSED MATTER | 1996年 / 100卷 / 02期
关键词：
D O I：
10.1007/s002570050111
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
The effect of uniaxial stress on T-c in YBa2Cu3O7 is studied within the van Hove scenario including the interlayer coupling (3D effects). The uniaxial pressure along the a or b axis changes the in-plane anisotropy, and that along the c axis increases the interlayer coupling. Both of them change the averaged density of states and so T-c in the framework of the BCS theory. The latter effect on T-c is found to be small compared with the former, which can account for the uniaxial pressure experiment of YBa2Cu3O7.
引用
收藏
页码：191 / 194
页数：4
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