Thermal expansion, heat capacity and magnetostriction of RAl3 (R = Tm, Yb, Lu) single crystals

被引：6

作者：

Bud'ko, S. L. ^{[1
,2
]}

Frederick, J. C. ^{[1
,2
]}

Mun, E. D. ^{[1
,2
]}

Canfield, P. C. ^{[1
,2
]}

Schmiedeshoff, G. M. ^{[3
]}

机构：

[1] Iowa State Univ, US DOE, Ames Lab, Ames, IA 50011 USA

[2] Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA

[3] Occidental Coll, Dept Phys, Los Angeles, CA 90041 USA

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 2008年 / 20卷 / 02期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1088/0953-8984/20/02/025220

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We present thermal expansion and longitudinal magnetostriction data for cubic RAl(3) ( R = Tm, Yb, Lu) single crystals. The thermal expansion coefficient for YbAl(3) is consistent with an intermediate valence of the Yb ion, whereas the data for TmAl(3) show crystal electric field contributions and have strong magnetic field dependences. de Haas-van Alphen like oscillations were observed in the magnetostriction data for YbAl(3) and LuAl(3), several new extreme orbits were measured and their effective masses were estimated. Specific heat data taken at 0 and 140 kOe for both LuAl(3) and TmAl(3) for T <= 200 K allow for the determination of a crystal electric field splitting scheme for TmAl(3).

引用

页数：8

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