Crystal chirality and skyrmion helicity in MnSi and (Fe, Co)Si as determined by transmission electron microscopy

D. Morikawa, K. Shibata, N. Kanazawa, X. Z. Yu, Y. Tokura

Research output: Contribution to journalArticlepeer-review

32 Citations (Scopus)

Abstract

The magnetic skyrmions as derived from the proper screw spin state in chiral-lattice magnets (e.g., MnSi) show the intrinsic spin swirling direction or the magnetic helicity. The crystal chirality (Γc) and skyrmion helicity (γs) were simultaneously determined at the identical specimen areas of MnSi and Fe1-xCoxSi (x=0.2,0.5) by using convergent-beam electron diffraction and Lorentz transmission electron microscopy techniques, respectively. The reversal of the Γcs correlation is observed between MnSi and Fe1-xCoxSi and ascribed to the different sign of the Dzyaloshinskii-Moriya interaction between both compounds.

Original languageEnglish
Article number024408
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume88
Issue number2
DOIs
Publication statusPublished - 2013 Jul 11
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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