Field-Induced Commensurate-Incommensurate Phase Transition in a Dzyaloshinskii-Moriya Spiral Antiferromagnet

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

Research output: Contribution to journalArticlepeer-review

Abstract

We report an observation of a commensurate-incommensurate phase transition in a Dzyaloshinskii-Moriya spiral magnet Ba2CuGe2O7. The transition is induced by applying a magnetic field in the plane of spin rotation. In this experiment we have direct control over the strength of the commensurate potential, while the preferred incommensurate period of the spin system remains unchanged. Experimental results for the period of the soliton lattice and bulk magnetization as a function of external magnetic field are in quantitative agreement with theory.

Original languageEnglish (US)
Pages (from-to)4857-4860
Number of pages4
JournalPhysical review letters
Volume78
Issue number25
DOIs
StatePublished - Jun 23 1997
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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