Large Loop Current Induced Inside the Molecular Bridge
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概要
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The noteworthy features of the current distribution inside the molecular bridge structure are elucidated. We consider the tight-binding model system with one orbital per atom for the sake of simplicity. The concept of the eigenchannel combined with the transfer matrix method is developed for obtaining a transport view of the quantum nature of the molecular bridge. Eigenchannel decomposition is applied not only to the transmission probability but also to the current distribution. In some cases, a loop current induced by the source-drain current is found at the ring part of the molecule. The magnitude of the loop current can be much larger than that of the source-drain current. The condition for the appearance of this induced loop current is also discussed.
- 社団法人応用物理学会の論文
- 1998-11-15
著者
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NAKANISHI Shousuke
Department of Physics, Graduate School of Science, University of Tokyo
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Nakanishi Shousuke
Department Of Physics Graduate School Of Science University Of Tokyo
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Tsukada Masaru
Department Of Nano-science And Nano-technology Advanced School Of Science And Engineering Waseda Uni
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Tsukada Masaru
Department of Nano-Science and Nano-Engineering, Waseda University, 513 Waseda Tsurumaki-cho, Shinjuku-ku, Tokyo 162-0041, Japan
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