LINESHAPE AND MOMENT ANALYSIS OF THE DYNAMIC SUSCEPTIBILITY IN FERROMAGNETS - IRON ABOVE TC

被引：28

作者：

KORENMAN, V

PRANGE, RE

机构：

[1] Department of Physics and Astronomy, University of Maryland, College Park

来源：

SOLID STATE COMMUNICATIONS | 1979年 / 31卷 / 11期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/0038-1098(79)90416-2

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

A method is described for separating the magnetic response function of ferromagnets into magnon creation and annihilation parts, even above the Curie temperature. In the simplest approximation the lineshape is Gaussian in the magnitude of the momentum transfer at constant energy, and this is observed in iron. The magnitude, energy dependence, and temperature dependence of the line width and peak position are as predicted. An exact moment analysis lends support to the approximate expression. © 1979.

引用

页码：909 / 912

页数：4

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