Staggered-field effect on the magnetic-field-induced magnetization of the one-dimensional antiferromagnet Yb4As3

Kazuaki Iwasa, Masahumi Kohgi, Arsen Gukasov, Jean Michel Mignot, Naokazu Shibata, Akira Ochiai, Hidekazu Aoki, Takashi Suzuki

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11 Citations (Scopus)

Abstract

Magnetic properties in the charge-ordered phase of Yb4As3 have been studied by polarized-neutron diffraction. It is revealed that one-dimensional (1D) chains of magnetic Yb3+ ions are formed by charge ordering below 290 K. The field-induced magnetic moment on the 1D chain under a field parallel to the chain behaves as that of a spin-1/2 1D Heisenberg antiferromagnet with a g factor g=2.9. In the case of a field perpendicular to the chain, we observed a pronounced enhancement below about 10 K. The observed enhancement of the field-induced magnetization is reproduced well by a theory which takes into account the staggered-field effect due to the Dzyaloshinsky-Moriya interaction within the 1D magnetic chain.

Original languageEnglish
Article number052408
Pages (from-to)524081-524084
Number of pages4
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume65
Issue number5
Publication statusPublished - 2002 Feb 1

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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