Square-lattice spiral magnet in an in-plane magnetic field

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

Research output: Contribution to journalArticlepeer-review


The magnetic structure of (Formula presented) is investigated by neutron diffraction in magnetic fields applied along several directions in the (Formula presented) plane of the crystal. In relatively weak fields, (Formula presented), the propagation vector of the spin spiral rotates to form a finite angle with the field direction. This angle depends on the orientation of (Formula presented) itself. The rotation of the propagation vector is accompanied by a reorientation of the plane of spin rotation in the spiral. The observed behavior is well described by a continuous-limit form of a free-energy functional that includes exchange and Dzyaloshinskii-Moriya interactions, as well as the Zeeman energy and an empirical anisotropy term.

Original languageEnglish (US)
Pages (from-to)14006-14012
Number of pages7
JournalPhysical Review B - Condensed Matter and Materials Physics
Issue number21
StatePublished - 1997
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics


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