Publication: Electrical spin injection in perpendicular magnetized FePt/MgO/GaAs heterostructures at room temperature
Issued Date
2007-08-01
Resource Type
ISSN
15571947
15571939
15571939
Other identifier(s)
2-s2.0-34748857994
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Mahidol University
Rights Holder(s)
SCOPUS
Bibliographic Citation
Journal of Superconductivity and Novel Magnetism. Vol.20, No.6 (2007), 405-408
Suggested Citation
Asawin Sinsarp, Takashi Manago, Fumiyoshi Takano, Hiro Akinaga Electrical spin injection in perpendicular magnetized FePt/MgO/GaAs heterostructures at room temperature. Journal of Superconductivity and Novel Magnetism. Vol.20, No.6 (2007), 405-408. doi:10.1007/s10948-007-0244-5 Retrieved from: https://repository.li.mahidol.ac.th/handle/123456789/24601
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Title
Electrical spin injection in perpendicular magnetized FePt/MgO/GaAs heterostructures at room temperature
Abstract
We report zero-magnetic-field spin injection from FePt into GaAs at room temperature using FePt/MgO/GaAs-based light-emitting diode heterostructures. Experiments are performed on two samples with different compositions; Fe61Pt39and Fe57Pt43. The polarizations of injected electrons at 0 T for these two samples are at least 1.5% and 3.3%, respectively. The higher zero-magnetic-field injected spin polarization is considered to be due to the better remanent perpendicular magnetization of the FePt layer in the sample with Fe57Pt43. © 2007 Springer Science+Business Media, LLC.