| CROSS-DISCIPLINARY PHYSICS AND RELATED AREAS OF SCIENCE AND TECHNOLOGY |
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Properties of Heat Generation in a Double Quantum Dot |
| ZHOU Li-Ling1**, LI Yong-Jun2, HU Hua1 |
1Department of Physics, Jiujiang University, Jiujiang 332005
2College of Electronic and Information Engineering, Jiujiang University, Jiujiang 332005
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| Cite this article: |
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ZHOU Li-Ling, LI Yong-Jun, HU Hua 2014 Chin. Phys. Lett. 31 068501 |
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Abstract We investigate the electronic-current-induced heat generation in a double quantum dot connected by two normal leads. The dots are coupled in series with a coupling strength td. It is found that, at zero temperature and weak dot-lead coupling, td affects the heating and current heavily. In particular, the effects on the heat generation and on the current are quite different. For example, at a heating valley the current can exhibit a deep valley, a plateau, or a high peak depending on td. As a result, we can find an ideal working condition, large current while small heating, for the double dots system by tuning the interdot coupling strength.
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Published: 26 May 2014
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| PACS: |
85.35.Gv
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(Single electron devices)
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71.38.-k
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(Polarons and electron-phonon interactions)
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73.23.-b
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(Electronic transport in mesoscopic systems)
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