MAGNETIC-BEHAVIOR OF A CR+1.6AT-PERCENT SI SINGLE-CRYSTAL

被引:2
|
作者
LOURENS, JAJ [1 ]
ALBERTS, HL [1 ]
机构
[1] RAND AFRIKAANS UNIV,DEPT PHYS,JOHANNESBURG 2006,SOUTH AFRICA
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关键词
D O I
10.1142/S0217979293001323
中图分类号
O59 [应用物理学];
学科分类号
摘要
Measurements of thermal expansion and velocity of sound around the Neel temperature (T(N)) of a Cr + 1.6 at.% Si single crystal are presented. A weak continuous transition superimposed on a sharp first-order discontinuity was observed in the thermal expansion near T(N). The continuous component is accurately described by a critical exponent power law. The sound velocity diverges sharply near T(N) in contrast with theoretical predictions for Cr-like itinerant electron antiferromagnets.
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页码:630 / 633
页数:4
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