Dzyaloshinskii-Moriya Interaction as a Consequence of a Doppler Shift due to Spin-Orbit-Induced Intrinsic Spin Current

Toru Kikuchi, Takashi Koretsune, Ryotaro Arita, Gen Tatara

研究成果: Article査読

78 被引用数 (Scopus)

抄録

We present a physical picture for the emergence of the Dzyaloshinskii-Moriya (DM) interaction based on the idea of the Doppler shift by an intrinsic spin current induced by spin-orbit interaction under broken inversion symmetry. The picture is confirmed by a rigorous effective Hamiltonian theory, which reveals that the DM coefficient is given by the magnitude of the intrinsic spin current. Our approach is directly applicable to first principles calculations and clarifies the relation between the interaction and the electronic band structures. Quantitative agreement with experimental results is obtained for the skyrmion compounds Mn1-xFexGe and Fe1-xCoxGe.

本文言語English
論文番号247201
ジャーナルPhysical review letters
116
24
DOI
出版ステータスPublished - 2016 6 13
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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