Electronic transport through an open elliptic cavity

doi:10.1088/1009-1963/16/11/059

中国物理B ›› 2007, Vol. 16 ›› Issue (11): 3507-3513.doi: 10.1088/1009-1963/16/11/059

Electronic transport through an open elliptic cavity

王哲献, 明燚, 丁泽军

出版日期:2007-11-20 发布日期:2007-11-20

Electronic transport through an open elliptic cavity

Wang Zhe-Xian(王哲献)^a), Ming Yi(明燚)^b), and Ding Ze-Jun(丁泽军)^a)†

^aHefei National Laboratory for Physical Sciences at Microscale and Department of Physics, University of Science and Technology of China, Hefei 230026, China; ^bDepartment of Physics, Anhui University, Hefei 230039, China

Online:2007-11-20 Published:2007-11-20

摘要/Abstract

Abstract: This paper computes the conductance of an open ellipse cavity and discusses the effect of finite leads on conductance. The lead introduces mode coupling with bound states in the cavity which contributes to Fano resonant line shapes in conductance. By examining the resonant states in the cavity, the effects of state mixing and annular probability distribution of wave function due to the presence of leads are found. The results have been compared with the transport properties of other systems. The finite leads result in two effects, i.e. the evanescent mode contribution and additional oscillations, to the conductance.

Key words: open elliptic cavity, mode coupling, finite leads, transport

中图分类号: (Ballistic transport)

73.23.Ad

71.18.+y (Fermi surface: calculations and measurements; effective mass, g factor) 73.21.La (Quantum dots) 73.63.Kv (Quantum dots)

王哲献, 明燚, 丁泽军. Electronic transport through an open elliptic cavity[J]. 中国物理B, 2007, 16(11): 3507-3513.

Wang Zhe-Xian(王哲献), Ming Yi(明燚), and Ding Ze-Jun(丁泽军). Electronic transport through an open elliptic cavity[J]. Chinese Physics, 2007, 16(11): 3507-3513.

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Electronic transport through an open elliptic cavity

Electronic transport through an open elliptic cavity

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