Generalization of the Effective-Medium A
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C. Ganter; W. Schirmacher
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Article
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2000
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John Wiley and Sons
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English
β 128 KB
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We present a new version of the effective-medium approximation (EMA) for hopping in structurally disordered systems such as amorphous semiconductors or impurity-bands of crystalline semiconductors. In contrast to previous theories we are able to include the influence of closed loops in the path summ