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Superconducting transport in an LED with Nb electrodes |
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| Authors: | Hideaki Takayanagi R Inoue T Akazaki K Tanaka I Suemune |
| Institution: | 1. International Center for Materials NanoArchitechtonics, NIMS, Tsukuba 305-0003, Japan;2. Department of Applied Physics, Tokyo University of Science, Shinjuku, Tokyo 162-8601, Japan;3. NTT Basic Research Laboratories, Atsugi, Kanagawa 243-0198, Japan;4. Hamamatsu Photonics Central Research Laboratory, Hamamatsu 434-8601, Japan;5. Research Institute for Electronic Science, Hokkaido University, Sapporo 001-0021, Japan;6. CREST, Japan Science and Technology Corporation, Kawaguchi 332-0012, Japan |
| Abstract: | Superconducting transport is measured between two superconducting electrodes at the n-type semiconductor side of a superconductor-based LED where a Josephson junction is formed. The characteristics of the Josephson junction are found to be modulated by applying voltage to the normal electrode at the p-type semiconductor side. The Josephson junction characteristics show an extraordinary sensitivity to the radiative recombination process, which we estimate as the recombination efficiency. |
| Keywords: | Superconducting proximity effect Andreev reflection Superconductor-based LED Josephson effect Electroluminescence |
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