Unusual Magnetism Due to a Random Distribution of Cations in [alpha]-LiFeO^sub 2

Unusual Magnetism Due to a Random Distribution of Cations in [alpha]-LiFeO^sub 2

The magnetic behavior of disordered α-LiFeO ... is studied by Mossbauer spectroscopy, dc and ac susceptibilities. The ... Fe Mossbauer spectrum of α-LiFeO ... can be fitted by two doublets with similar isomer shifts but different quadruple splittings due to different electric field gradients at the...

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Veröffentlicht in:Journal of the Physical Society of Japan 2011-09, Vol.80 (9), p.1
Hauptverfasser: Du, Fei, Bie, Xiaofei, Ehrenberg, Helmut, Liu, Lina, Gao, Chunge, Wei, Yingjin, Chen, Gang, Chen, Hong, Wang, Chunzhong
Format: Artikel
Sprache:eng
Schlagworte:
Electric fields
Electromagnetism
Ferroelectrics
Spectrum analysis
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Zusammenfassung:The magnetic behavior of disordered α-LiFeO ... is studied by Mossbauer spectroscopy, dc and ac susceptibilities. The ... Fe Mossbauer spectrum of α-LiFeO ... can be fitted by two doublets with similar isomer shifts but different quadruple splittings due to different electric field gradients at the Fe ... cores. The effective moment of α-LiFeO ... is lower than that theoretical expected because of the formation of short-range antiferromagnetic clusters. The frequency dependence of the ac peaks at 88 K, irreversibility behavior and its evolution with the increasing strength of a superimposed dc field confirm a cluster spin glass state of α-LiFeO ... . (ProQuest: ... denotes formulae/symbols omitted.)
ISSN:0031-9015
1347-4073