Polarizable scattering centers in a fluctuation approach to charge transport |
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Authors: | R Hertling E Gerlach |
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Institution: | 111. I. Physikalisches Institut, Rheinisch-Westf?lische Technische Hochschule Aachen, D-52056, Aachen, Germany
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Abstract: | We present a detailed derivation of the fluctuation transport theory, previously developed by Gerlach and Mycielski. The basic idea is the transformation of carrier-densities and fields into the rest frame of each type of carriers and application of the Fluctuation-Dissipation-theorem for monopolar, unscreened carrier densities. In the present paper, the theory is applied to a model system containing free electrons, rigid ions and polarizable neutral donors. We compare our results with experimental data for the polar II–VI-semiconductor Eu1-xSrxS. |
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