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David Hobbs. Photo.

David Hobbs

Professor

David Hobbs. Photo.

Fully unconstrained non-collinear magnetism in triangular Cr and Mn monolayers and overlayers on Cu(111) substrates

Author

  • David Hobbs
  • Jürgen Hafner

Summary, in English

A recently developed fully unconstrained approach to non-collinear magnetism has been applied to the investigation of the magnetic ground state of triangular free-standing Cr and Mn monolayers and overlayers on Cu(111) substrates. Such systems represent a physical realization of a frustrated two-dimensional antiferromagnet. We find that the ground state of the Cr monolayers is non-collinear; it shows (3)1/2×(3)1/2 periodicity with ±120° angles between the directions of the magnetic moments on neighbouring sites. Mn monolayers on the other hand have a collinear ground state with antiferromagnetically coupled rows and c(2×2) periodicity. The fully unconstrained description allows for a detailed investigation of the spin densities in the interstitial regions.

Publishing year

2000

Language

English

Pages

7025-7025

Publication/Series

Journal of Physics: Condensed Matter

Volume

12

Document type

Journal article

Publisher

IOP Publishing

Status

Published

ISBN/ISSN/Other

  • ISSN: 1361-648X