Observation of a Spin-Glass Transition in the S=1 Heisenberg Antiferromagnet Ni(C2H8N2)2NO2(ClO4)

Masayuki Hagiwara; Koichi Katsumata; Shinji Sasaki; Naoyuki Narita; Isao Yamada; Taturu Yosida

doi:10.1143/jpsj.64.3647

Journal of the Physical Society of Japan

Online ISSN : 1347-4073
Print ISSN : 0031-9015
ISSN-L : 0031-9015

Observation of a Spin-Glass Transition in the S=1 Heisenberg Antiferromagnet Ni(C₂H₈N₂)₂NO₂(ClO₄)

Masayuki Hagiwara, Koichi Katsumata, Shinji Sasaki, Naoyuki Narita, Isao Yamada, Taturu Yosida

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Keywords: spin-glass, Haldane material

JOURNAL RESTRICTED ACCESS

1995 Volume 64 Issue 10 Pages 3647-3650

DOI https://doi.org/10.1143/jpsj.64.3647

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Abstract

Dc, linear ac and nonlinear ac susceptibility measurements on a nominally pure single crystal of the S=1 linear chain Heisenberg antiferromagnet Ni(C₂H₈N₂)₂NO₂ClO₄ (NENP) show clearly that a spin-glass transition takes place in this sample. A possible origin of this spin-glass freezing is discussed.

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