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- W1999221633 abstract "Abstract We propose a generalized Anderson model and study numerically the localization phenomena in one dimension. In our model, not all the sites take on-site random site energy. The on-site energy en on the nth site is assigned as follows. If n+P−1=0 ( mod P) , where P is a positive integer, en is assumed to be randomly distributed between −W/2 and W/2. On the other lattice sites, the site energy is fixed, say en=0.The localization length ξ defined as |t|2=e−2L/ξ, where t is the transmission coefficient, is calculated using the transfer matrix method. It is found that the single-electron states with wave vectors k= π /P, 2 π /P,…,(P−1) π /P are no longer localized as in the standard Anderson model. Compared with the smooth localization length spectrum of the Anderson model, there appear P−1 sharp peaks periodically located at P−1 values of wave vector on the localization length spectrum of the generalized Anderson model with parameter P." @default.
- W1999221633 created "2016-06-24" @default.
- W1999221633 creator A5074494245 @default.
- W1999221633 date "2000-04-01" @default.
- W1999221633 modified "2023-10-18" @default.
- W1999221633 title "Anomalous Anderson localization" @default.
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- W1999221633 doi "https://doi.org/10.1016/s0921-4526(99)00751-6" @default.
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