Chiral magnetic ordering in two-dimensional ferromagnets with competing Dzyaloshinsky-Moriya interactions

E. Y. Vedmedenko, L. Udvardi, P. Weinberger, R. Wiesendanger

Research output: Contribution to journalArticle

45 Citations (Scopus)

Abstract

Chiral magnetic ordering due to Dzyaloshinsky-Moriya interaction on two-dimensional lattices is studied theoretically. Several competing Dzyaloshinsky-Moriya vectors are introduced on the basis of symmetry arguments. The role of the exchange interaction, magnetic anisotropy, and dipolar coupling for the ordering in chiral nanomagnets is investigated. It is demonstrated that the periodicity of the modulated structure, which is determined by all interactions involved, is lattice dependent; the direction of spiral propagation and orientation of magnetization is determined by the competition between different Dzyaloshinsky-Moriya vectors and anisotropy; the anisotropy can induce a domain formation or destroy the chiral ordering depending on its orientation. We show that the Dzyaloshinsky-Moriya coupling is responsible for the chiral magnetic ordering in Fe/W (110).

Original languageEnglish
Article number104431
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume75
Issue number10
DOIs
Publication statusPublished - Mar 30 2007

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Magnetization
anisotropy
Anisotropy
Magnetic anisotropy
Exchange interactions
interactions
periodic variations
magnetization
propagation
symmetry
Direction compound

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Chiral magnetic ordering in two-dimensional ferromagnets with competing Dzyaloshinsky-Moriya interactions. / Vedmedenko, E. Y.; Udvardi, L.; Weinberger, P.; Wiesendanger, R.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 75, No. 10, 104431, 30.03.2007.

Research output: Contribution to journalArticle

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