OBSERVATION OF VORTEX FLUCTUATIONS IN THE CUPRATE SUPERCONDUCTOR BI2SR2CACU2O8

被引：37

作者：

BRAWNER, DA ^{[1
]}

SCHILLING, A ^{[1
]}

OTT, HR ^{[1
]}

HAUG, RJ ^{[1
]}

PLOOG, K ^{[1
]}

VONKLITZING, K ^{[1
]}

机构：

[1] MAX PLANCK INST FESTKORPERFORSCH,W-7000 STUTTGART 80,GERMANY

来源：

PHYSICAL REVIEW LETTERS | 1993年 / 71卷 / 05期

关键词：

D O I：

10.1103/PhysRevLett.71.785

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Using a micro-Hall probe, measurements of field of first flux penetration H(p) and the critical current density J(c) have been made near T(c) of superconducting Bi2Sr2CaCu2O8. In the temperature region just below T(c)=86.0 K; T(s) < T < T(c), it was found that H(p) and J(c) are strongly suppressed, leaving a reversible diamagnetic susceptibility. No similar effect is observed in YBa2Cu3O7-y which suggests that the highly two-dimensional character of Bi2Sr2CaCu2O8 is responsible for its particular behavior. The results are compared with recent theoretical predictions.

引用

页码：785 / 788

页数：4

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