MORIN PHASE TRANSITION IN HAEMATITE (ALPHA-FE203) .I. A GROUP-THEORETIC MODEL

被引：4

作者：

HERBERT, DC

机构：

[1] Department of Physics, Imperial College

来源：

JOURNAL OF PHYSICS PART C SOLID STATE PHYSICS | 1969年 / 2卷 / 09期

关键词：

D O I：

10.1088/0022-3719/2/9/310

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

A group-theoretic technique for simplifying spin-wave calculations in complicated magnetic structures is developed in this paper. The technique gives the free spin-wave energies exactly at the centre of the Brillouin zone and at certain other symmetry points. By simplifying the canonical transformation to magnon operators, it reduces the labour required to analyse magnon interaction effects, and brings complex crystals within the scope of the Green function method.

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页码：1606 / &

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