Quantum Lattice-Gas Automata Simulation of Electronic Wave Propagation in Nanostructures |
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Authors: | Atsushi Sakai Yoshinari Kamakura Kenji Taniguchi |
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Affiliation: | (1) Department of Electronics and Information Systems, Osaka University, 2–1 Yamada–oka, Suita Osaka, 565-0871, Japan |
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Abstract: | We report the two- and three-dimensional quantum lattice-gas automata simulation for one-particle electronic wave propagation in nanostructures. The transmission coefficient of the electronic wave through the two-dimensional quantum point contact is investigated taking account of the surface roughness of the confinement wall. It is demonstrated that the electron transmission is significantly affected by the surface roughness pattern even if the same roughness parameter is assumed. We also perform the three-dimensional simulation, and the wave propagation in the structure like an ultrathin-body MOSFET is visualized. |
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Keywords: | quantum lattice-gas automata time-dependent Schrö dinger equation quantum point contact surface roughness ultrathin-body MOSFET |
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