Magnetic-field-induced ferroelectric polarization flop under pressure in TbMnO3

Takuya Aoyama, Ayato Iyama, Katsuya Shimizu, Tsuyoshi Kimura

研究成果: Conference article査読

抄録

Magnetoelectric properties of multiferroic TbMnO3 with a cycloidal spiral spin order were investigated as functions of applied pressure and magnetic field. We found that a flop of ferroelectric polarization occurs by applying a magnetic field along the a axis under 2-3 GPa below the Néel temperature of Tb moments. A possible origin of the magnetoelectric transition is discussed based on the observed pressure and magnetic-field profiles of the ferroelectric polarization and the dielectric relaxation. This flop would originate from the 90° rotation of the cycloidal spiral plane from the bc plane to the ab plane.

本文言語English
論文番号012118
ジャーナルJournal of Physics: Conference Series
592
1
DOI
出版ステータスPublished - 2014
外部発表はい
イベント2014 International Conference on Strongly Correlated Electron Systems, SCES 2014 - Grenoble, France
継続期間: 2014 7 72014 7 14

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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