EFFECT OF HIGH-PRESSURE AND MAGNETIC-FIELD ON THE ELECTRICAL-RESISTIVITY OF YBAGCU4

被引：1

作者：

GRAF, T

THOMPSON, JD

CANFIELD, PC

MAPLE, MB

FISK, Z

机构：

[1] IOWA STATE UNIV SCI & TECHNOL,AMES LAB,AMES,IA 50011

[2] UNIV CALIF SAN DIEGO,LA JOLLA,CA 92093

来源：

PHYSICA B | 1994年 / 199卷

关键词：

D O I：

10.1016/0921-4526(94)91890-2

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The electrical resistivity of YbAgCu4 has been measured at pressures up to 100 kbar and at temperatures between 1 and 300 K. With increasing pressure, the resistivity maximum shifts to lower temperatures and the coherent regime disappears above about 60 kbar. At the highest pressures, a field of 8 T produces a large negative magnetoresistance, roughly equivalent to a negative pressure of 30 kbar. The behavior is consistent with a pressure-induced decrease in the Kondo temperature.

引用

页码：520 / 521

页数：2

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