MAGNETIC EXCITATIONS IN QUASI-ONE-DIMENSIONAL HEXAGONAL ABX(3)-TYPE ANTIFERROMAGNETS

被引：4
|
作者：
INAMI, T
KAKURAI, K
TANAKA, H
ENDERLE, M
STEINER, M
机构：
[1] SOPHIA UNIV,DEPT PHYS,TOKYO 102,JAPAN
[2] UNIV SAARLAND,INST TECH PHYS,SAARBRUCKEN,GERMANY
[3] HAHN MEITNER INST BERLIN GMBH,BERLIN,GERMANY
来源：
PHYSICA B | 1995年 / 213卷
关键词：
D O I：
10.1016/0921-4526(95)00093-O
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
The magnetic excitations of three ABX(3)-type quasi-1-D AFs with half-integer spin values are studied. We show that magnetic excitations in S = 5/3 systems in the ordered phase at low T are excellently described by the semi-classical linear spin-wavetheory. In S = 3/2 systems however, non-linear terms due to quantum fluctuations are necessary to understand spin dynamics of the system at low T.
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页码：167 / 169
页数：3
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