Ferroelectric polarization flop in a frustrated magnet MnWO4 induced by a magnetic field

K. Taniguchi, N. Abe, T. Takenobu, Y. Iwasa, T. Arima

Research output: Contribution to journalArticle

369 Citations (Scopus)

Abstract

The relationship between magnetic order and ferroelectric properties has been investigated for MnWO4 with a long-wavelength magnetic structure. Spontaneous electric polarization is observed in an elliptical spiral spin phase. The magnetic-field dependence of electric polarization indicates that the noncollinear spin configuration plays a key role for the appearance of the ferroelectric phase. An electric polarization flop from the b direction to the a direction has been observed when a magnetic field above 10 T is applied along the b axis. This result demonstrates that an electric polarization flop can be induced by a magnetic field in a simple system without rare-earth 4f moments.

Original languageEnglish
Article number097203
JournalPhysical Review Letters
Volume97
Issue number9
DOIs
Publication statusPublished - 2006
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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