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

Hobbs, David LU and Hafner, Jürgen (2000) In Journal of Physics: Condensed Matter 12. p.7025-7025
Abstract
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... (More)
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. (Less)
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author
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Contribution to journal
publication status
published
in
Journal of Physics: Condensed Matter
volume
12
pages
7025 - 7025
publisher
IOP Publishing
external identifiers
  • scopus:0034248120
ISSN
1361-648X
language
English
LU publication?
no
id
bfa3ff77-5fb0-4cf7-8a67-9c6ebbbf7c50
date added to LUP
2016-09-09 16:44:17
date last changed
2017-07-30 05:14:36
@article{bfa3ff77-5fb0-4cf7-8a67-9c6ebbbf7c50,
  abstract     = {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.},
  author       = {Hobbs, David and Hafner, Jürgen},
  issn         = {1361-648X},
  language     = {eng},
  pages        = {7025--7025},
  publisher    = {IOP Publishing},
  series       = {Journal of Physics: Condensed Matter},
  title        = {Fully unconstrained non-collinear magnetism in triangular Cr and Mn monolayers and overlayers on Cu(111) substrates},
  volume       = {12},
  year         = {2000},
}