Topological Nernst effect in a three-dimensional skyrmion-lattice phase

Y. Shiomi, N. Kanazawa, K. Shibata, Y. Onose, Y. Tokura

研究成果: Article査読

50 被引用数 (Scopus)

抄録

By measuring electrical Hall, thermal Hall, and Nernst effects, we have comprehensively investigated the topological transport properties associated with the Berry phase of noncoplanar spin structure in a possible skyrmion-lattice phase of MnGe. While the topological terms in thermal and electrical Hall conductivity decrease rapidly with temperature elevation, that in the Nernst effect can be discerned up to near the magnetic transition temperature. The topological term in transverse Peltier conductivity obeys the Mott relation and changes with temperature in proportion to the three-dimensional density of the topological spin texture. This result indicates that three dimensionally ordered skyrmions are responsible for the topological transport phenomena in MnGe.

本文言語English
論文番号064409
ジャーナルPhysical Review B - Condensed Matter and Materials Physics
88
6
DOI
出版ステータスPublished - 2013 8 12
外部発表はい

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学

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