Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5376211 | Chemical Physics | 2008 | 11 Pages |
Abstract
We report the effects of on- and off-center attractive impurities on regular parabolic dots and their impact on the level structures as a function of the strength of the transverse magnetic field. Information entropy, probability density and level-spacing distribution are used as keys to monitor the pattern of evolution of electronic states. The level structures are marked by crossings and anticrossings and sharply peaked level-spacing distribution functions, either at low or high field strengths confirming the presence of level repulsion. The anticipated emergence of quantum chaos as a result of hole doping is demonstrated in dots with off-centre impurities.
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Physical and Theoretical Chemistry
Authors
Ram Kuntal Hazra, Manas Ghosh, S.P. Bhattacharyya,