Excitonic Effect on the Electron Tunneling Through a Quant urn Well |
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| Authors: | DU Yuantai ZHOU Hong LIN Tsunghan |
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| Institution: | 1. Department of Physics, Mesoscopic Physics Laboratory, Peking University, Beijing 100871, China;
2. CCAST (World Laboratory), P.O. Box 8730, Beijing 100080, China;
3. Institute of Theoretical Physics, Academia Sinica, Beijing 100080, China |
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| Abstract: | We proposed a simplified model to describe the excitonic effect on electron tunneling through a quantum well (QW). Using nonequilibrium-Green-function method self consistently, we calculated the dc current of electron tunneling through QW. The extra plateau in the J-V characteristics appears dearly, which shows the existence of exciton in QW. This result is in good agreement with the experiment qualitatively. We also studied the density of electrons and holes in the quantum well. |
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| Keywords: | excitonic effect electron tunneling quantum well |
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