SEEBECK AND NERNST EFFECT IN THE MIXED STATE OF SLIGHTLY OXYGEN DEFICIENT YBACUO

被引：26

作者：

HUEBENER, RP

KOBER, F

RI, HC

KNORR, K

TSUEI, CC

CHI, CC

SCHEUERMANN, MR

机构：

[1] UNIV TUBINGEN,INST KRISTALLOG,W-7400 TUBINGEN 1,GERMANY

[2] IBM CORP,THOMAS J WATSON RES CTR,DIV RES,YORKTOWN HTS,NY 10598

来源：

PHYSICA C | 1991年 / 181卷 / 4-6期

关键词：

D O I：

10.1016/0921-4534(91)90122-F

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

For an epitaxial c-axis oriented slightly oxygen deficient YBaCuO film, showing a positive Seebeck coefficient around 100 K, the Nernst effect has been measured in the mixed state for magnetic fields up to 9 T. The transport entropy calculated in the usual way is about an order of magnitude smaller than for a similar but fully oxygenated film with a negative Seebeck coefficient near 100 K. This can be explained by the enhanced decoupling of the CuO2 planes in the slightly oxygen deficient material, resulting in a strong departure of the vortices ("pancake vortices") from the standard Abrikosov type.

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页码：345 / 354

页数：10

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