Field-induced incommensurate-to-commensurate transition

A. Zheludev, S. Maslov, G. Shirane, Y. Sasago, N. Koide, K. Uchinokura

Research output: Contribution to journalArticlepeer-review


We report an observation of a commensurate-incommensurate phase transition in the Dzyaloshinskii-Moriya spiral antiferromagnet Ba(Formula presented). The transition is induced by an external magnetic field applied along the (Formula presented) axis of the tetragonal structure, i.e., in the plane of spin rotation. Bulk magnetic measurements and neutron-diffraction experiments show that the transition occurs in a critical field (Formula presented) T. Experimental results for the period of the magnetic structure and magnetization as functions of magnetic field are in quantitative agreement with our exact analytical solution for Dzyaloshinskii’s model of commensurate-incommensurate transitions in spiral magnets.

Original languageEnglish (US)
Pages (from-to)2968-2978
Number of pages11
JournalPhysical Review B - Condensed Matter and Materials Physics
Issue number5
StatePublished - 1998
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics


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