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High-temperature ferromagnetism in heavily Fe-doped ferromagnetic semiconductor (Ga,Fe)Sb.

Authors :
Nguyen Thanh Tu
Pham Nam Hai
Le Duc Anh
Masaaki Tanaka
Source :
Applied Physics Letters. 5/9/2016, Vol. 108 Issue 19, p192401-1-192401-4. 4p. 1 Diagram, 3 Graphs.
Publication Year :
2016

Abstract

We show high-temperature ferromagnetism in heavily Fe-doped ferromagnetic semiconductor (Ga1-x,Fex)Sb (x = 23% and 25%) thin films grown by low-temperature molecular beam epitaxy. Magnetic circular dichroism spectroscopy and anomalous Hall effect measurements indicate intrinsic ferromagnetism of these samples. The Curie temperature reaches 300K and 340K for x = 23% and 25%, respectively, which are the highest values reported so far in intrinsic III-V ferromagnetic semiconductors. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
00036951
Volume :
108
Issue :
19
Database :
Academic Search Index
Journal :
Applied Physics Letters
Publication Type :
Academic Journal
Accession number :
115343847
Full Text :
https://doi.org/10.1063/1.4948692