ANOMALOUS ULTRASONIC ATTENUATION ABOVE MAGNETIC CRITICAL POINT

被引：63

作者：

LARAMORE, GE

KADANOFF, LP

机构：

[1] Department of Physics, University of Illinois, Urbana

[2] Department of Physics, Brown University, Providence, RI

来源：

PHYSICAL REVIEW | 1969年 / 187卷 / 02期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1103/PhysRev.187.619

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The mode-mode coupling theory of Kadanoff and Swift is used to describe the rise in the ultrasonic attenuation as a material approaches its magnetic transition. Near the transition, dynamic fluctuations in the magnetic order cause increased absorption of the sound. Predictions are made of the increased attenuation in various models of magnetic systems. A comparison with experiment is carried out. © 1969 The American Physical Society.

引用

页码：619 / +

页数：1

共 53 条

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