Theory of Tunneling Processes in Quantum Structures
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概要
- 論文の詳細を見る
A theoretical framework to build a concrete analysis method for tunneling processes through quantum structures (QSs) is proposed based on Keldysh Green's function. As a result of three steps of transformations, we deduce the general expression for the current flowing through QSs which corresponds to the nonequilibrium and the nonlinear version of the Kubo formula. It is revealed how we can achieve the general formula successfully. It is shown that, in tunneling processes through QSs, both the elastic scattering and the inelastic scattering play an essential role. Our framework is expected to be applicable to various QSs fabricated by metals, semiconductors, superconductors and magnetic materials, since our procedure is not sensitive to details of the Hamiltonian.
- Publication Office, Japanese Journal of Applied Physics, Faculty of Science, University of Tokyoの論文
- 2001-03-30
著者
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Isawa Yoshimasa
Department Of Physical Electronics Faculty Of Engineering Hiroshima University
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Horii Hideto
Department Of Applied Physics Osaka City University
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Isawa Yoshimasa
Department of Physical Electronics, Faculty of Engineering, Hiroshima University, Kagamiyama 1-4-1, Higashihiroshima 739-8527, Japan
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