Conductance Fluctuations in Two- Dimensional Systems in Random Magnetic Fields
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概要
- 論文の詳細を見る
The conductance of a two-dimensional system subject to a random magnetic field is calculated within the Landauer-Buttiker formalism. Although there is no potential disorder the random fluctuating magnetic field introduces a random vector potential. Electrons in bulk states are found to be strongly scattered by the fluctuating field. In contrast, edge states are found to be quite stable even if the fluctuation of the field is of the order of a uniform background field. In a fully random field, the U(1) model, clear universal conductance fluctuations (UCF) are observed. The magnitude of the fluctuations is compared with that in the time reversal symmetric Z_2 model.
- 社団法人日本物理学会の論文
- 1993-11-15
著者
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ONO Yoshiyuki
Department of Physics,Toho University
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OHTSUKI Tomi
Department of Physics,Sophia University
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Slevin Keith
Department of Physics, Toho University
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Ohtsuki T
Sophia Univ. Tokyo
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Slevin Keith
Department Of Physics Faculty Of Science Toho University
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Yoshiyuki Ono
Department Of Physics Toho University
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Ohtsuki T
Yokohama City Univ. Yokohama
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Ohtsuki Tomi
Department Of Physics Faculty Of Science University Of Tokyo
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Ono Yoshiyuki
Department Of Physicis Toho University
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Ono Yoshiyuki
Department Of Physics Faculty Of Science Toho University
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