論文

査読有り
2017年1月

Electromagnon resonance in a collinear spin state of the polar antiferromagnet Fe2Mo3O8

PHYSICAL REVIEW B
  • T. Kurumaji
  • ,
  • Y. Takahashi
  • ,
  • J. Fujioka
  • ,
  • R. Masuda
  • ,
  • H. Shishikura
  • ,
  • S. Ishiwata
  • ,
  • Y. Tokura

95
2
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1103/PhysRevB.95.020405
出版者・発行元
AMER PHYSICAL SOC

Magnetic excitations are investigated for a hexagonal polar magnet Fe2Mo3O8 by terahertz spectroscopy. We observed magnon modes including an electric-field active magnon, electromagnon, in the collinear antiferromagnetic phase with spins parallel to the c axis. We unravel the nature of these excitations by investigating the correlation between the evolution of the mode profile and the magnetic transition from antiferromagnetic to ferrimagnetic order induced by a magnetic field or Zn doping. We propose that the observed electromagnon mode involves the electric polarization oscillating within the c plane induced by the collective precession of the spins through the same mechanism as producing the linear magnetoelectric effect.

Web of Science ® 被引用回数 : 13

リンク情報
DOI
https://doi.org/10.1103/PhysRevB.95.020405
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000391307700001&DestApp=WOS_CPL
URL
http://orcid.org/0000-0003-1696-2514

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