Sheet superconductivity in twin walls:: experimental evidence of WO3-x

被引：280

作者：

Aird, A

Salje, EKH

机构：

[1] Univ Cambridge, Irc Superconduct, Cambridge CB2 3EQ, England

[2] Univ Cambridge, Dept Earth Sci, Cambridge CB2 3EQ, England

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 1998年 / 10卷 / 22期

关键词：

D O I：

10.1088/0953-8984/10/22/003

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Single crystals of WO3 that contain ferroelastic twin walls have been chemically deoxygenated using a gas transport reaction with Na vapour. The reaction product consists of a non-superconducting matrix of tetragonal WO3-x and superconducting twin boundaries. The superconducting transition temperature is 3 K. The upper critical field has been measured; its temperature dependence shows BCS type behaviour at T < 2.5 K and a weak tail near T-c.

引用

页码：L377 / L380

页数：4

共 11 条

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