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Annealing Effect in GaDyN on Optical and Magnetic Properties.

Authors :
Zhou, Yi-Kai
Takahashi, Masahiro
Emura, Shuichi
Hasegawa, Shigehiko
Asahi, Hajime
Source :
Journal of Superconductivity & Novel Magnetism. Jan2010, Vol. 23 Issue 1, p103-105. 3p. 4 Graphs.
Publication Year :
2010

Abstract

The annealing effect on the optical and magnetic properties of the GaDyN layers was studied. The PL intensities of yellow and green bands as well as the intra-4 f orbital transition of Dy3+ ions were found to decrease for the samples annealed at 900 and 1000 °C. It is supposed that the intra-4 f orbital transition is related to the broad peak luminescence coming from defects. Increasing the annealing temperature, the magnetization becomes smaller. It is considerable that the number of electrons coming from defects was reduced by the annealing treatments and that the ferromagnetism in GaDyN is attributed as carrier induced ferromagnetism. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
15571939
Volume :
23
Issue :
1
Database :
Academic Search Index
Journal :
Journal of Superconductivity & Novel Magnetism
Publication Type :
Academic Journal
Accession number :
46830853
Full Text :
https://doi.org/10.1007/s10948-009-0578-2