BREAK-JUNCTION TUNNELING EXPERIMENTS FOR BI2SR2CACU2OX IN A STRONG MAGNETIC-FIELD

被引：1

作者：

VEDENEEV, SI ^{[1
]}

SAMUELY, P ^{[1
]}

JANSEN, AGM ^{[1
]}

WYDER, P ^{[1
]}

STEPANOV, VA ^{[1
]}

机构：

[1] PN LEBEDEV PHYS INST,MOSCOW 117924,RUSSIA

来源：

PHYSICA B | 1994年 / 194卷

关键词：

D O I：

10.1016/0921-4526(94)91383-8

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The tunneling conductance curves of single-crystal Bi2Sr2CaCu2Ox break-junctions show a BCS like behaviour with a small leakage current at zero bias voltage and a reproducible superconducting gap value DELTA = 23 +/- 1 meV. In zero magnetic field the broadening of the tunneling data amounts only between 1.5 and 5 meV, depending on the tunneling contact. The application of a magnetic field up to 20 T leads to a small increase in the broadening of the superconducting gap structure, while the energy position of the gap remains unchanged.

引用

页码：1767 / 1768

页数：2

共 5 条

[1] SUPERCONDUCTING AND STRUCTURAL-PROPERTIES OF HOMOGENEOUS BISRCACUO-(2212) SINGLE-CRYSTALS PREPARED BY SOLUTION GROWTH [J].