THE INFLUENCE OF THE CRYSTAL-FIELD ON THE ANISOTROPIC THERMAL-EXPANSION IN TMCU2

被引：6
|
作者：
GRATZ, E
LINDBAUM, A
ROTTER, M
机构：
[1] Inst. for Exp. Phys., Vienna
来源：
JOURNAL OF PHYSICS-CONDENSED MATTER | 1993年 / 5卷 / 43期
关键词：
D O I：
10.1088/0953-8984/5/43/009
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
The lattice parameters a, b and c of TmCu2 have been measured in the temperature range from 4.2 K up to 300 K using x-ray powder diffraction. The influence of the crystal field on the thermal expansion in TmCu2 in the paramagnetic region bas been determined by comparing the thermal expansion of the non-magnetic YCu2 with that of TmCu2 (TmCu2 orders magnetically at T-N = 6.3 K). The data thus obtained are compared with a theoretical model given by Gratz et al in 1993 using a set of crystal field parameters published by Gubbens et al in 1992. From this analysis we get information about the unknown elastic and magnetoelastic properties of TmCu2.
引用
收藏
页码：7955 / 7958
页数：4
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