Anomalously localised electronic states in three-dimensional
disordered systems |
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Authors: | P Cain M Schreiber |
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Institution: | 1. Institut für Physik, Technische Universit?t Chemnitz, 09107, Chemnitz, Germany
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Abstract: | We study the Anderson model of localisation at the
metal-insulator transition in the band centre of three-dimensional
disordered samples. For the critical disorder we determine a large
number of wave functions of the model and study the distribution of
the wave function amplitudes. Deviations from scaling of
multifractal correlation functions allow us to discriminate
anomalously localised states from the usual critical states. The
thus identified anomalously localised states lead to deviations of
the critical properties and should be eliminated from the ensemble
average for a characterisation of criticality. |
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Keywords: | |
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