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The influence of annealing atmosphere on the properties of Zn[sub 1−x]Co[sub x]O powders as seen by EPR spectroscopy

Authors :
Dana Toloman
Adriana Florina Popa
O. Raita
Alexandru R. Biris
L. M. Giurgiu
Manuela Stan
Source :
AIP Conference Proceedings.
Publication Year :
2013
Publisher :
AIP, 2013.

Abstract

This paper reports the influence of the annealing in air and argon atmosphere on the structural and magnetic characteristics of Co-doped ZnO powders. XRD studies reveal a wurzite- type structure, while the formation of Co3O4 secondary phase was evidenced by Raman spectroscopy only for the sample annealed in air. A ferromagnetic behavior was observed for the sample annealed in air atmosphere and this behavior was explained. The sample annealed in argon atmosphere presents a paramagnetic behavior.

Details

ISSN :
0094243X
Database :
OpenAIRE
Journal :
AIP Conference Proceedings
Accession number :
edsair.doi...........39098d28259e04571075c5c61390c746
Full Text :
https://doi.org/10.1063/1.4833737