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MnAs Nanocrystals Embedded in GaAs

Kwiatkowski, A.; Dluzewski, P.; Borysiuk, J.; Wasik, D.; Kaminska, M.; Twardowski, A. and Sadowski, Janusz LU (2008) 37th International School on the Physics of Semiconducting Compounds In ACTA PHYSICA POLONICA A 114(5). p.1207-1211
Abstract
Magnetic properties of MnAs nanocrystals embedded in GaAs are analyzed in the frame of phenomenological model proposed by Sasaki for ferritin superparamagnets. Our calculations explain qualitatively experimental data of magnetization versus temperature; obtained according to zero-field-cooled and field-cooled protocols. They show dynamics of magnetization of MnAs nanocrystals in range of temperature from 10 K to 320 K. There is transition from state in which very slow dynamics is observed (frozen state) to state in which dynamics is fast (quasi-superparamagnetic state).
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author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
in
ACTA PHYSICA POLONICA A
volume
114
issue
5
pages
1207 - 1211
publisher
Polish Academy of Sciences
conference name
37th International School on the Physics of Semiconducting Compounds
external identifiers
  • wos:000260435700032
  • scopus:54949103619
ISSN
0587-4246
language
English
LU publication?
yes
id
711cf3ef-f36a-4834-92e1-f835b8e28a9c (old id 1284066)
date added to LUP
2009-02-10 14:03:12
date last changed
2017-01-01 05:33:33
@inproceedings{711cf3ef-f36a-4834-92e1-f835b8e28a9c,
  abstract     = {Magnetic properties of MnAs nanocrystals embedded in GaAs are analyzed in the frame of phenomenological model proposed by Sasaki for ferritin superparamagnets. Our calculations explain qualitatively experimental data of magnetization versus temperature; obtained according to zero-field-cooled and field-cooled protocols. They show dynamics of magnetization of MnAs nanocrystals in range of temperature from 10 K to 320 K. There is transition from state in which very slow dynamics is observed (frozen state) to state in which dynamics is fast (quasi-superparamagnetic state).},
  author       = {Kwiatkowski, A. and Dluzewski, P. and Borysiuk, J. and Wasik, D. and Kaminska, M. and Twardowski, A. and Sadowski, Janusz},
  booktitle    = {ACTA PHYSICA POLONICA A},
  issn         = {0587-4246},
  language     = {eng},
  number       = {5},
  pages        = {1207--1211},
  publisher    = {Polish Academy of Sciences},
  title        = {MnAs Nanocrystals Embedded in GaAs},
  volume       = {114},
  year         = {2008},
}