MAGNETIC AND MAGNETOVOLUME PROPERTIES OF RCO2 COMPOUNDS AND ALLOYS FROM ENERGY-BAND STRUCTURE

被引：19

作者：

HATHAWAY, K

CULLEN, J

机构：

[1] Naval Surface Weapons Center, Silver Spring, MD

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 1991年 / 3卷 / 45期

关键词：

D O I：

10.1088/0953-8984/3/45/013

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

A quantitative description of the magnetic behaviour is obtained for the itinerant electrons of the rare-earth-cobalt Laves-phase compounds. This is accomplished by fitting the results of a fixed-spin-moment calculation of the electronic energy of YCo2 to a power series in the magnetization for several different volumes and by coupling to the rare earth spins in molecular field theory. The T = 0 itinerant moments are obtained for the RCo2 series and the alloy Y1-xGdxCo2. The spontaneous volume magnetostriction of RCo2 is also estimated. The results are compared with experiment.

引用

页码：8911 / 8916

页数：6

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