ELASTIC ANOMALIES IN HEAVY FERMION COMPOUNDS

被引：3
|
作者：
BRULS, G
LUTHI, B
WEBER, D
WOLF, B
THALMEIER, P
机构：
[1] Physikalisches Institut, Universität Frankfurt, Frankfurt
来源：
PHYSICA SCRIPTA | 1991年 / T35卷
关键词：
D O I：
10.1088/0031-8949/1991/T35/018
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We studied elastic constants, ultrasonic attenuation and a.c.-susceptibility in the normal and superconducting states of the heavy fermion compounds UPt3 and CeCu2Si2. In the normal state of CeCu2Si2 we observe crystal electric field-, Gruneisen parameter coupling- and magnetic fluctuation-effects. We present a B-T phase diagram for the magnetic and superconducting phases. In UPt3 we concentrate on the superconducting behaviour, mainly on the splitting of the transition as a function of temperature as well as of magnetic field. The phase diagram obtained from elastic constant measurements is compared with theoretical predictions.
引用
收藏
页码：82 / 84
页数：3
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