RESISTIVE UPPER CRITICAL-FIELD OF TL2BA2CUO6 AT LOW-TEMPERATURE AND HIGH MAGNETIC-FIELDS

被引：268

作者：

MACKENZIE, AP ^{[1
]}

JULIAN, SR ^{[1
]}

LONZARICH, GG ^{[1
]}

CARRINGTON, A ^{[1
]}

HUGHES, SD ^{[1
]}

LIU, RS ^{[1
]}

SINCLAIR, DC ^{[1
]}

机构：

[1] UNIV CAMBRIDGE,CAVENDISH LAB,CAMBRIDGE CB3 0HE,ENGLAND

来源：

PHYSICAL REVIEW LETTERS | 1993年 / 71卷 / 08期

关键词：

D O I：

10.1103/PhysRevLett.71.1238

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The resistive upper critical field of overdoped single crystals of Tl2Ba2CuO6 has been measured from the zero field transition temperature T(c)(0) (approximately 20 K) to temperatures as low as 12 mK, corresponding to less than 0.001T(c)(0). In sharp contrast to the predictions of standard theories of superconductivity, the critical field is found to rise steeply with positive curvature as the temperature is reduced, and no sign of saturation is observed down to the lowest temperatures reached.

引用

页码：1238 / 1241

页数：4

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