SUPERCONDUCTING FLUCTUATION EFFECTS IN AMORPHOUS-BISMUTH THIN-FILMS IN THE PRESENCE OF A PERPENDICULAR MAGNETIC-FIELD

被引：6

作者：

SILVERMAN, PJ ^{[1
]}

机构：

[1] UNIV MARYLAND,COLLEGE PK,MD 20742

来源：

PHYSICAL REVIEW B | 1979年 / 19卷 / 01期

关键词：

D O I：

10.1103/PhysRevB.19.233

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The resistive transition of amorphous-Bi thin films ranging from 100 to 2900 thick was measured in perpendicular magnetic fields to 6000 G. The results were compared with a form of the Aslamazov-Larkin theory modified to account for the presence of a magnetic field. Results were in agreement with theory for H1000 G; at higher fields the effects of superconducting fluctuations were overshadowed by flux-flow resistance. From the measurements, the Ginzburg-Landau coherence-length constant was determined to be η=(72±5). No evidence was seen for a contribution from the Maki-Thompson fluctuation mechanism. © 1979 The American Physical Society.

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页码：233 / 237

页数：5

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