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- W2027094145 abstract "We have demonstrated by electroluminescence the injection of spin polarized electrons through Co/Al2O3/GaAs tunnel barrier into p-doped InAs/GaAs quantum dots embedded in a PIN GaAs light emitting diode. The spin relaxation processes in the p-doped quantum dots are characterized independently by optical measurements (time and polarization resolved photoluminescence). The measured electroluminescence circular polarization is about 15 % at low temperature in a 2T magnetic field, leading to an estimation of the electrical spin injection yield of 35%. Moreover, this electroluminescence circular polarization is stable up to 70 K." @default.
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- W2027094145 date "2007-02-19" @default.
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- W2027094145 title "Electrical spin injection into p-doped quantum dots through a tunnel barrier" @default.
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- W2027094145 doi "https://doi.org/10.1063/1.2709889" @default.
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