Multi-frequency ESR studies on a Haldane magnet in a field-induced phase at ultra-low temperatures

被引：1

作者：

Hagiwara, Masayuki ^{[1
]}

Kashiwagi, Takanari ^{[1
]}

Idutsu, Yuichi ^{[1
]}

Honda, Zentaro

Miyazaki, Hiroshi

Harada, Isao

机构：

[1] Osaka Univ, KYOKUGEN, Osaka 5608531, Japan

来源：

INTERNATIONAL CONFERENCE ON MAGNETISM (ICM 2009) | 2010年 / 200卷

关键词：

D O I：

10.1088/1742-6596/200/2/022012

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report the results of multi-frequency electron spin resonance (ESR) measurements on single crystals of Ni(C5H14N2)(2)N-3(PF6) which is regarded as the one-dimensional Heisenberg antiferromagnet with spin one, namely the Haldane magnet, at very low temperatures down to about 100 mK. We observed the lowest resonance branch below about 500 mK for the field along the chain direction (H parallel to c), which was observed previously only in an inelastic neutron scattering experiment at 30 mK. We compare the resonance branch with that calculated by a phenomenological field theory, and discuss the field dependence and the temperature sensitivity of this ESR branch.

引用

页数：4

共 15 条

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