High-pressure magnetic ordering of YbSi and YbCu2Si2

被引：5

作者：

AlamiYadri, K ^{[1
]}

Jaccard, D ^{[1
]}

Link, P ^{[1
]}

机构：

[1] UNIV GENEVA,DEPT PHYS MAT CONDENSEE,CH-1211 GENEVA 4,SWITZERLAND

来源：

PHYSICA B | 1997年 / 230卷

关键词：

high pressure; magnetic order; resistivity; YbCu2Si2; YbSi;

D O I：

10.1016/S0921-4526(96)00678-3

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We report high-pressure resistivity measurements of YbSi and YbCu2Si2. At ambient pressure, YbSi is a reduced-moment antiferromagnetically ordered Kondo compound, while YbCu2Si2 is a non-magnetic system not far from its intermediate valence regime. With increasing pressure, the Kondo temperature T-K decreases, magnetic ordering appears for YbCu2Si2 and the magnetic ordering temperature T-M rises. For YbSi above 5 GPa, the resistivity shows an exponential variation in a narrow temperature range which could be the signature of gap opening.

引用

页码：272 / 274

页数：3

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