Collapse of magnetic order of the quasi one-dimensional ising-like antiferromagnet BaCo2V2O8 in transverse fields

Shojiro Kimura, Koichi Okunishi, Masayuki Hagiwara, Koichi Kindo, Zhangzhen He, Tomoyasu Taniyama, Mitsuru Itoh, Keiichi Koyama, Kazuo Watanabe

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17 Citations (Scopus)

Abstract

We have performed magnetization measurements of the quasi one-dimensional (1D) S = 1/2 Ising-like antiferromagnet BaCo2V2O 8 in transverse fields. Different from the expectation by the 1D S = 1/2 XXZ model, a steep suppression of the antiferromagnetic order is observed for H k =100, whereas the experimental results for H || [110] agree with the XXZ model. We show that these anisotropic behaviors are caused by a characteristic screw chain structure in BaCo2V2O8, which gives rise to a peculiar angular dependence of effective fields upon application of uniform external magnetic fields.

Original languageEnglish
Article number033706
Journaljournal of the physical society of japan
Volume82
Issue number3
DOIs
Publication statusPublished - 2013 Mar 1

Keywords

  • Field-induced phase transition
  • Magnetization measurement
  • One dimensional antiferromagnet

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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