EFFECT OF ANISOTROPY ON ONE-MAGNON LIGHT-SCATTERING FROM ANTI-FERROMAGNETS - .1. ANTI-FERROMAGNETIC REGION

被引：15

作者：

COTTAM, MG ^{[1
]}

AWANG, AL ^{[1
]}

机构：

[1] UNIV SAINS MALAYSIA,SCH PHYS,PENANG,MALAYSIA

来源：

JOURNAL OF PHYSICS C-SOLID STATE PHYSICS | 1979年 / 12卷 / 01期

关键词：

D O I：

10.1088/0022-3719/12/1/021

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

A Green function formalism is used to evaluate the intensity for one-magnon light scattering antiferromagnets with single-ion anisotropy. The calculations are carried out for systems with spin S=1 and include both linear and quadratic magneto-optical coupling to the spin system. The results are applicable over a wide range of temperatures above and below TN, whilst the applied magnetic field is allowed to take any value below the spin-flop transition field. The theory is applied to obtain numerical results for the antiferromagnets K2NiF4 and NiO.

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页码：105 / 120

页数：16

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