ULTRASONIC PROPAGATION NEAR MAGNETIC CRITICAL POINT OF NICKEL

被引：58
作者：
GOLDING, B
BARMATZ, M
机构：
[1] Bell Telephone Laboratories, Murray Hill
来源：
PHYSICAL REVIEW LETTERS | 1969年 / 23卷 / 05期
关键词：
D O I：
10.1103/PhysRevLett.23.223
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Measurements of the attenuation and velocity of megahertz longitudinal-acoustic waves have been made near the magnetic critical point of nickel. The temperatures of the attenuation maxima and velocity minima occur below TC and are frequency dependent. These phenomena, which have not been observed previously in a magnetic system, show striking similarities to the behavior of first sound near the λ point of liquid helium. © 1969 The American Physical Society.
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页码：223 / &
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