Effects of Impurities in Two-Dimensional Graphite(Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties)
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概要
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The impurity effects in a two-dimensional graphite sheet (graphene) are studied by self-consistent T-matrix approximation. Conductivity is found to be modestly enhanced from a universal value 4e^2/(πh^2), where -e is the electron charge and h is the Planck constant, by strong long-range potential. The staggered susceptibility of π electrons is enhanced by strong impurity scattering irrespective of its range; it logarithmically diverges as T → 0 in the unitarity limit.
- 社団法人日本物理学会の論文
- 2006-05-15
著者
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Hirashima Dai
Nagoya Univ. Nagoya
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Hirashima Dai
Department Of Physics Nagoya University
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KUMAZAKI Hideki
Department of Physics, Nagoya University
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Kumazaki Hideki
Nagoya Univ. Nagoya
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Kumazaki Hideki
Department Of Physics Nagoya University
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Hirashima Dai
Department of Material Science, International Christian University, Mitaka, Tokyo 181-8585, Japan
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