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  4. As-doping effect on magnetic, optical and transport properties of Zn 0.9Co0.1O diluted magnetic semiconductor
 
research article

As-doping effect on magnetic, optical and transport properties of Zn 0.9Co0.1O diluted magnetic semiconductor

Ndilimabaka, H.
•
Colis, S.
•
Schmerber, G.
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2006
Chemical Physics Letters

We report on the structural, magnetic, optical and transport properties of As-doped Zn0.9Co0.1O thin films. X-ray diffraction indicates highly (0 0 0 1) textured samples free of secondary phases. Transmission UV-Vis spectroscopy shows that Co is in the +2 oxidation state and substitute for the Zn2+ ions of the ZnO matrix. ZnCoO was doped with 0.5% As which lead to n-type doping. Before and after As-implantation, the films remain ferromagnetic up to 350 K and the magnetization is unchanged. Surprisingly, there is no real influence of the doping process on the exchange interaction mediated by itinerant carriers between magnetic ions. © 2006 Elsevier B.V. All rights reserved.

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Type
research article
DOI
10.1016/j.cplett.2006.01.066
Web of Science ID

WOS:000236662600037

Author(s)
Ndilimabaka, H.
Colis, S.
Schmerber, G.
Müller, D.
Grob, J. J.
Gravier, L.  
Jan, C.
Beaurepaire, E.
Dinia, A.
Date Issued

2006

Publisher

Elsevier

Published in
Chemical Physics Letters
Volume

421

Issue

1-3

Start page

184

End page

188

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
LPMN  
Available on Infoscience
March 23, 2010
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/48540
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