The Hubbard Model for the Structurally Random System
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概要
- 論文の詳細を見る
The theory of the Hubbard model for a structurally disordered system appropriate to the impurity band is developed. The resonance broadening process, which is taken into account in the present theory gives rise to an important difference in the electron structure as contrasted to the works by previous authors. the density of states with its motional narrowing and tailing, the Anderson localization and the metal-non-metal (MNM) transition are discussed. The critical concentration $N_{c}$ at which the MNM transition takes place agrees with the experimental result $N_{c}{=}3\times 10^{18}$ cm-3 for Si : P within a factor of two. The possibility of a pressure induced MNM transition is also suggested.
- 社団法人日本物理学会の論文
- 1976-01-15
著者
-
Kamimura Hiroshi
Cabendish Laboratory Cambridge U.k. On Leave Of Absnce From Department Of Physics University Of Toky
-
Aoki Hideo
Department Of Biochemical Engineering Graduate School Of Science And Technology Yamagata University
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