Nonreciprocal magnon propagation in a noncentrosymmetric ferromagnet LiFe5O8

Y. Iguchi, S. Uemura, K. Ueno, Y. Onose

研究成果: Article

43 引用 (Scopus)

抜粋

In noncentrosymmetric materials, the relativistic effect extensively modifies the energy band of magnons as well as that of electrons. With use of microfabricated microwave antennae, we have demonstrated that the propagation of magnons with large momentum is nonreciprocal in a noncentrosymmetric ferromagnet LiFe5O8. The nonreciprocity is clearly explained by the effect of the asymmetric magnon band originating from the relativistic Dzyaloshinskii-Moriya interaction. This result may pave a new path to designing a magnonic device based on the relativistic band engineering.

元の言語English
記事番号184419
ジャーナルPhysical Review B - Condensed Matter and Materials Physics
92
発行部数18
DOI
出版物ステータスPublished - 2015 11 18
外部発表Yes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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