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Title: Very high spin polarization in GaAs by injection from a (Ga,Mn)As Zener diode
Authors: Van Dorpe, Pol
Liu, Z
Van Roy, Willem
Motsnyi, VF
Sawicki, M
Borghs, Gustaaf
De Boeck, J #
Issue Date: May-2004
Publisher: American institute of physics
Series Title: Applied Physics Letters vol:84 issue:18 pages:3495-3497
Abstract: We demonstrate an electrically injected electron spin polarization in GaAs of 80% at 4.6 K by interband tunneling from the valence band of (Ga,Mn)As into an (Al,Ga)As light-emitting diode. The polarization is analyzed by the oblique Hanle effect and vanishes at 120 K, the Curie temperature of the (Ga,Mn)As injector. The temperature and the bias dependence of the polarization are explained in terms of the properties of the (Ga,Mn)As/GaAs diode. (C) 2004 American Institute of Physics.
ISSN: 0003-6951
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Physics and Astronomy - miscellaneous
Associated Section of ESAT - INSYS, Integrated Systems
# (joint) last author

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