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Title: Electrical spin injection from an iron-rich iron-platinum thin film into gallium arsenide
Authors: Asawin Sinsarp
Takashi Manago
Fumiyoshi Takano
Hiro Akinaga
Mahidol University
National Institute of Advanced Industrial Science and Technology
Tokyo University of Science, Yamaguchi
Keywords: Materials Science;Physics and Astronomy
Issue Date: 1-Mar-2008
Citation: Journal of Nonlinear Optical Physics and Materials. Vol.17, No.1 (2008), 105-109
Abstract: We fabricated an FePt/MgO tunneling junction (Fe 55 atomic %) on a GaAs-based light-emitting-diode structure. The out-of-plane magnetization of the FePt thin film was confirmed by a magneto-optical measurement. The electrical spin injection from FePt into GaAs at room temperature was studied using the technique of spin-polarized electroluminescence. The spin polarization of the injected electrons under the magnetic field of 1 T was at least 6.0%. The remnant polarization at 0 T, which indicates the spin injection without a magnetic field, was at least 3.3%. © 2008 World Scientific Publishing Company.
ISSN: 02188635
Appears in Collections:Scopus 2006-2010

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