Dynamics of multiferroic domain wall in spin-cycloidal ferroelectric DyMnO3

F. Kagawa, M. Mochizuki, Y. Onose, H. Murakawa, Y. Kaneko, N. Furukawa, Y. Tokura

研究成果: Article査読

97 被引用数 (Scopus)

抄録

We report the dielectric dispersion of the giant magnetocapacitance (GMC) in multiferroic DyMnO3 over a wide frequency range. The GMC is found to be attributable not to the softened electromagnon but to the electric-field-driven motion of multiferroic domain wall (DW). In contrast to conventional ferroelectric DWs, the present multiferroic DW motion holds an extremely high relaxation rate of ∼107s-1 even at low temperatures. This mobile nature as well as the model simulation suggests that the multiferroic DW is not atomically thin as in ferroelectrics but thick, reflecting its magnetic origin.

本文言語English
論文番号057604
ジャーナルPhysical review letters
102
5
DOI
出版ステータスPublished - 2009 2 2
外部発表はい

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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