EFFECT OF UNIAXIAL PRESSURE ON THE SUPERCONDUCTING TRANSITION IN YBA2CU3O7

被引：12

作者：

GUPTA, RP ^{[1
]}

GUPTA, M ^{[1
]}

机构：

[1] UNIV PARIS 11,INST SCI MAT,F-91405 ORSAY,FRANCE

来源：

PHYSICAL REVIEW B | 1994年 / 50卷 / 13期

关键词：

D O I：

10.1103/PhysRevB.50.9615

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The changes in the hole carrier concentrations in YBa2Cu3O7 are calculated for uniaxial compressions. We find that while a compression along the a axis enhances the hole density, the one along the b axis results in an almost equal decrease. Due to this cancellation, the pressure dependence of T(c) under a hydrostatic pressure is essentially the same as for a uniaxial stress along the c axis. A qualitative discussion is also given of the strikingly different behavior in YBa2Cu4O8 which is attributed to the chain-chain interaction in this compound.

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页码：9615 / 9618

页数：4

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