ORDER FROM DISORDER IN A KAGOME ANTIFERROMAGNET

被引：16

作者：

CHUBUKOV, A ^{[1
]}

机构：

[1] PL KAPITZA PHYS PROBLEMS INST, MOSCOW, RUSSIA

来源：

JOURNAL OF APPLIED PHYSICS | 1993年 / 73卷 / 10期

关键词：

D O I：

10.1063/1.353624

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

It will be discussed to what extent the large S approach to an antiferromagnet on a kagome lattice can explain the data of magnetothermal and neutron scattering experiments on a stacked kagome antiferromagnet Sr-Cr-Ga-O. In particular, it will be shown that quantum fluctuations lift the classical degeneracy related to a large amount of frustration in a kagome lattice and give rise to a finite velocity of spin-wave excitations which is by a factor S-1/3 smaller than for a conventional antiferromagnet.

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页码：5639 / 5641

页数：3

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