Two-Dimensional Simulation of Quantum Tunneling across Barrier with Surface Roughness
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概要
- 論文の詳細を見る
We present two-dimensional simulation of quantum tunneling across a potential barrier with surface roughness using quantum lattice–gas automata. The impact of the nonuniformity of the barrier thickness on the transmission coefficient is discussed by comparing the results of one- and two-dimensional tunneling simulations. The dependence of the transmission coefficient on the parallel momentum of the incident electron is also investigated, and it is demonstrated that the scattering by the surface roughness on the incident side of the interface causes the violation of the parallel momentum conservation. We discuss the effect of the obtained results on the gate current modeling for the scaled metal–oxide–semiconductor field-effect transistors.
- 2005-12-15
著者
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Kamakura Yoshinari
Department Of Electronic Information And Energy Engineering Graduate School Of Eng. Osaka University
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Sakai Atsushi
Department Of Biochemistry Faculty Of Veterinary Medicine Hokkaido University
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Taniguchi Kenji
Department Of Biotechnology Tottori University
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Kamakura Yoshinari
Department of Electronics and Information Systems, Osaka University, 2-1 Yamada-oka, Suita, Osaka 565-0871, Japan
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Taniguchi Kenji
Department of Electronics and Information Systems, Osaka University, 2-1 Yamada-oka, Suita, Osaka 565-0871, Japan
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Kamakura Yoshinari
Department of Electronic Engineering, Osaka University, Suita, Osaka 565-0871, Japan
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