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Magnetostatic interactions in planar ring-like nanoparticle structures

Koksharov, Yu.A.; Khomutov, G.B.; Soldatov, E.S.; Suyatin, Dmitry LU ; Maximov, Ivan LU ; Montelius, Lars LU and Carlberg, Patrick LU (2006) 13th Intl Congr on Thin Films and 8th Intl Conf on Atomically Controlled Surf, Interfaces and Nanostr, Stockholm, Sweden (2005) In Thin Solid Films 515. p.731-734
Abstract
Numerical calculations of equilibrium state energies and local magnetic fields in planar ring-like nanoparticle structures were performed. The dipole–dipole, Zeeman and magnetic anisotropy interactions were included into the model. The result of their competition depends on the value of the external magnetic field, magnetic parameters of an individual nanoparticle, size and shape of the structures. Flux-closed vortexes, single domain, two- domain ‘‘onion’’-like, ‘‘hedgehog’’-like and more complex spin structures can be realized. The critical field, providing a sharp transition from the flux-closed vortex to the ‘‘onion’’-like state, can be regulated by a variation of the particle magnetization and anisotropy constant, their easy... (More)
Numerical calculations of equilibrium state energies and local magnetic fields in planar ring-like nanoparticle structures were performed. The dipole–dipole, Zeeman and magnetic anisotropy interactions were included into the model. The result of their competition depends on the value of the external magnetic field, magnetic parameters of an individual nanoparticle, size and shape of the structures. Flux-closed vortexes, single domain, two- domain ‘‘onion’’-like, ‘‘hedgehog’’-like and more complex spin structures can be realized. The critical field, providing a sharp transition from the flux-closed vortex to the ‘‘onion’’-like state, can be regulated by a variation of the particle magnetization and anisotropy constant, their easy directions, and particle space arrangement. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
ring-like structures, nanoparticles, magnetism, two-dimensional
in
Thin Solid Films
volume
515
pages
731 - 734
publisher
Elsevier
conference name
13th Intl Congr on Thin Films and 8th Intl Conf on Atomically Controlled Surf, Interfaces and Nanostr, Stockholm, Sweden (2005)
external identifiers
  • WOS:000241220600085
  • Scopus:33748749074
ISSN
0040-6090
DOI
10.1016/j.tsf.2005.12.177
language
English
LU publication?
yes
id
7cec6c14-00bd-4581-864e-6795cf1cf02a (old id 387193)
date added to LUP
2011-08-16 12:06:52
date last changed
2016-10-13 05:09:47
@misc{7cec6c14-00bd-4581-864e-6795cf1cf02a,
  abstract     = {Numerical calculations of equilibrium state energies and local magnetic fields in planar ring-like nanoparticle structures were performed. The dipole–dipole, Zeeman and magnetic anisotropy interactions were included into the model. The result of their competition depends on the value of the external magnetic field, magnetic parameters of an individual nanoparticle, size and shape of the structures. Flux-closed vortexes, single domain, two- domain ‘‘onion’’-like, ‘‘hedgehog’’-like and more complex spin structures can be realized. The critical field, providing a sharp transition from the flux-closed vortex to the ‘‘onion’’-like state, can be regulated by a variation of the particle magnetization and anisotropy constant, their easy directions, and particle space arrangement.},
  author       = {Koksharov, Yu.A. and Khomutov, G.B. and Soldatov, E.S. and Suyatin, Dmitry and Maximov, Ivan and Montelius, Lars and Carlberg, Patrick},
  issn         = {0040-6090},
  keyword      = {ring-like structures,nanoparticles,magnetism,two-dimensional},
  language     = {eng},
  pages        = {731--734},
  publisher    = {ARRAY(0x9e6d1f0)},
  series       = {Thin Solid Films},
  title        = {Magnetostatic interactions in planar ring-like nanoparticle structures},
  url          = {http://dx.doi.org/10.1016/j.tsf.2005.12.177},
  volume       = {515},
  year         = {2006},
}