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Magnetic properties of MnAs nanocrystals embedded in GaAs

Kwiatkowski, A. ; Wasik, D. ; Dluzewski, P. ; Borysiuk, J. ; Kaminska, M. ; Twardowski, A. and Sadowski, Janusz LU (2009) In Journal of Magnetism and Magnetic Materials 321(18). p.2788-2791
Abstract
A phenomenological model for explaining the magnetic properties of MnAs nanocrystals embedded in GaAs is proposed. It is shown that experimental data of DC magnetization as a function of temperature, obtained according to zero-field-cooled and field-cooled protocols, can be understood assuming a transition of the system from a low temperature state in which very slow dynamics is observed(frozen state) to a high-temperature state in which dynamics is fast(quasi superparamagnetic state). (C) 2009 Elsevier B. V. All rights reserved.
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author
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organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Nanoprecipitate, Nanocrystal, Nanocomposite, Superparamagnet
in
Journal of Magnetism and Magnetic Materials
volume
321
issue
18
pages
2788 - 2791
publisher
Elsevier
external identifiers
  • wos:000266823200020
  • scopus:66149174771
ISSN
0304-8853
DOI
10.1016/j.jmmm.2009.04.033
language
English
LU publication?
yes
id
6b819ad0-c61e-4d21-b2ec-eb816554abbf (old id 1442002)
date added to LUP
2016-04-01 13:10:55
date last changed
2020-01-12 11:17:40
@article{6b819ad0-c61e-4d21-b2ec-eb816554abbf,
  abstract     = {A phenomenological model for explaining the magnetic properties of MnAs nanocrystals embedded in GaAs is proposed. It is shown that experimental data of DC magnetization as a function of temperature, obtained according to zero-field-cooled and field-cooled protocols, can be understood assuming a transition of the system from a low temperature state in which very slow dynamics is observed(frozen state) to a high-temperature state in which dynamics is fast(quasi superparamagnetic state). (C) 2009 Elsevier B. V. All rights reserved.},
  author       = {Kwiatkowski, A. and Wasik, D. and Dluzewski, P. and Borysiuk, J. and Kaminska, M. and Twardowski, A. and Sadowski, Janusz},
  issn         = {0304-8853},
  language     = {eng},
  number       = {18},
  pages        = {2788--2791},
  publisher    = {Elsevier},
  series       = {Journal of Magnetism and Magnetic Materials},
  title        = {Magnetic properties of MnAs nanocrystals embedded in GaAs},
  url          = {http://dx.doi.org/10.1016/j.jmmm.2009.04.033},
  doi          = {10.1016/j.jmmm.2009.04.033},
  volume       = {321},
  year         = {2009},
}