FLUX-FLOW NERNST EFFECT IN EPITAXIAL YBA2CU3O7

被引：74

作者：

HAGEN, SJ

LOBB, CJ

GREENE, RL

FORRESTER, MG

TALVACCHIO, J

机构：

[1] WESTINGHOUSE ELECT CORP,CTR SCI & TECHNOL,PITTSBURGH,PA 15235

[2] IBM CORP,DIV RES,YORKTOWN HTS,NY 10598

来源：

PHYSICAL REVIEW B | 1990年 / 42卷 / 10期

关键词：

D O I：

10.1103/PhysRevB.42.6777

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

From measurements of thermally driven flux-vortex motion (flux-flow Nernst effect) in an epitaxial YBa2Cu3O7 film we determine the entropy S transported by a moving vortex and demonstrate agreement with recent Ettingshausen-effect results. Because a Nernst effect is a distinctive signature of vortex motion in a superconductor, this experiment also reveals the field and temperature regions of the mixed state in which vortices move freely. We can therefore correlate these measurements with other transport studies of the mixed state. © 1990 The American Physical Society.

引用

页码：6777 / 6780

页数：4

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