Topological spin textures in the helimagnet FeGe

M. Uchida, N. Nagaosa, J. P. He, Y. Kaneko, S. Iguchi, Y. Matsui, Y. Tokura

Research output: Contribution to journalArticle

59 Citations (Scopus)

Abstract

We report on the real-space observation of a type of spin texture, i.e., the Swiss-roll-like vortex, in cubic helimagnet (B20 -type) FeGe in terms of the Lorentz electron microcopy. This structure is enabled by the weak spin anisotropy in FeGe and the two-dimensional confinement, as revealed by a theoretical analysis that takes into account the Berry phase associated with the curved spin stripes, i.e., the change in the spiral direction.

Original languageEnglish
Article number184402
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume77
Issue number18
DOIs
Publication statusPublished - 2008 May 2
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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