Magnetic properties of MnAs nanocrystals embedded in GaAs
Författare
Summary, in English
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.
Avdelning/ar
Publiceringsår
2009
Språk
Engelska
Sidor
2788-2791
Publikation/Tidskrift/Serie
Journal of Magnetism and Magnetic Materials
Volym
321
Issue
18
Dokumenttyp
Artikel i tidskrift
Förlag
Elsevier
Ämne
- Natural Sciences
- Physical Sciences
Nyckelord
- Nanoprecipitate
- Nanocrystal
- Nanocomposite
- Superparamagnet
Status
Published
ISBN/ISSN/Övrigt
- ISSN: 0304-8853