| 正常金属-量子点-超导系统的共振隧穿 |
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| 引用本文： | 冯金福.正常金属-量子点-超导系统的共振隧穿[J].常熟理工学院学报,2004,18(4):14-21. |
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| 作者姓名： | 冯金福 |
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| 作者单位： | 常熟理工学院物理系,江苏,常熟,215500 |
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| 摘 要： | 研究了正常金属-量子点-超导系统的输运特性,并考虑了相互作用在点上和对势在超导一边,输运特性依赖于库仑阻塞效应和Andreev反射的竞争,在有限温度下,电导对门压展现出一系列的峰,它们取决于量子点的能级间隔和电荷能.不同种类共振峰的详细分析也被给出.
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| 关 键 词： | 量子点 超导 库仑阻塞 Andreev反射 |
| 文章编号： | 1008-2794(2004)04-0014-08 |
| 修稿时间： | 2004年1月2日 |
Tunnelling resonances in transport of electrons through a normal metal- quantum dot- superconductor system |
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| FENG Jin-fu.Tunnelling resonances in transport of electrons through a normal metal- quantum dot- superconductor system[J].Journal of Changshu Institute of Technology,2004,18(4):14-21. |
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| Authors: | FENG Jin-fu |
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| Abstract: | The transport properties of electrons in a normal-metal-quantum-dot-superconductor system are investigated by the use of an equivalent single-particle multichannel network that takes into account the interaction of the dot and the pairing potential on the superconducting side.The transport properties depend on the interplay between the Coulomb blockade effect and Andreev reflection.It is found that at finite temperatures the conductance versus the gate voltage exhibits a series of peaks,due to the Andreev reflection,depending on the resonances controlled by the charging energy and level spacing of the dot.A detailed analysis of the physical origin of resonant peaks of different kinds is given. |
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| Keywords: | Quantum dot Superconductor Coulomb blockade Andreev reflection |
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