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Spin injection in the multiple quantum-well LED structure with the Fe/AlOx injector |
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| Authors: | WU Hao ZHENG HouZhi LIU Jian LI GuiRong XU Ping ZHU Hui ZHANG Hao & ZHAO JianHua State Key Laboratory for Superlattices Microstructures |
| Institution: | WU Hao,ZHENG HouZhi,LIU Jian,LI GuiRong,XU Ping,ZHU Hui,ZHANG Hao & ZHAO JianHua State Key Laboratory for Superlattices , Microstructures,Institute of Semiconductors,Chinese Academy of Sciences,Beijing 100083,China |
| Abstract: | A spin-injection/-detection device has been fabricated based on the multiple quantum well light emitting diode (LED) structure. It is found that only a broad electroluminescence (EL) peak of a full width at half maximum of 8.6 nm appears at the wavelength of 801 nm in EL spectra with a circular luminescence polarization degree of 18%, despite PL spectra always show three well resolved peaks. The kinetic energy gained by injected electrons and holes in their drift along opposite directions broadens the EL pe... |
| Keywords: | spintronics spin injection light emitting diode multiple quantum well |
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