Field-Induced Gap Formation in Yb4AS3

Masaki Oshikawa, Kazuo Ueda, Hidekazu Aoki, Akira Ochiai, Masahumi Kohgi

Research output: Contribution to journalArticlepeer-review

94 Citations (Scopus)


The field-induced gap observed in the specific heat of Yb4As3 is interpreted as being due to the effective staggered field introduced by the alternating g-tensor and alternating Dzyaloshinsky-Moriya interactions. This mechanism also provides a natural explanation for the anomalous increase of magnetic susceptibility at low temperatures. A specific prediction is made for the dependence of the gap on the field direction.

Original languageEnglish
Pages (from-to)3181-3184
Number of pages4
Journaljournal of the physical society of japan
Issue number10
Publication statusPublished - 1999 Oct
Externally publishedYes


  • Charge ordering
  • Dzyaloshinsky-Moriya interaction
  • Field-induced gap
  • One-dimensional Heisenberg antiferromagnet
  • YbAs

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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