Andreev reflections from La2-xSrxCuO4 single crystals

被引：14

作者：

Deutscher, G ^{[1
]}

Achsaf, N ^{[1
]}

Goldschmidt, D ^{[1
]}

Revcolevschi, A ^{[1
]}

Vietkine, A ^{[1
]}

机构：

[1] UNIV PARIS 11,LAB CHIM SOLIDES,F-91405 ORSAY,FRANCE

来源：

PHYSICA C | 1997年 / 282卷

关键词：

D O I：

10.1016/S0921-4534(97)00242-6

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We have measured the conductance of Point Contacts between LSCO single crystals and Gold tips. The initial increase of the conductance as a function of applied bias rules out the presence of nodes in the gap. The data is best fitted by an extended s-wave symmetry gap, with a ratio of about three between its extrema values.

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页码：140 / 144

页数：5

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