Publikation: Strong non-Arrhenius temperature dependence of the resistivity in the regime of traditional band transport
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When a strong, though non-Arrhenius temperature dependence of electrical resistivity is observed, one usually concludes that the underlying mechanism is variable-range hopping. Unexpectedly, such observations are also made for many semiconductor systems at elevated temperatures, where a variable-range hopping mechanism seems unlikely. A satisfactory explanation for this observation is still lacking up to now. The authors demonstrate that a non-Arrhenius resistivity behavior may also arise in a band transport picture by thermal activation of charge carriers from a reservoir into the transport-carrying band states, provided the energy distribution of reservoir states is sufficiently broadened or the density of band states exhibits tails.
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MICHEL, Christoph, Sergei D. BARANOVSKII, Peter J. KLAR, Peter THOMAS, Bastian GOLDLÜCKE, 2006. Strong non-Arrhenius temperature dependence of the resistivity in the regime of traditional band transport. In: Applied Physics Letters. 2006, 89(11), 112116. ISSN 0003-6951. eISSN 1077-3118. Available under: doi: 10.1063/1.2348771BibTex
@article{Michel2006Stron-29086,
year={2006},
doi={10.1063/1.2348771},
title={Strong non-Arrhenius temperature dependence of the resistivity in the regime of traditional band transport},
number={11},
volume={89},
issn={0003-6951},
journal={Applied Physics Letters},
author={Michel, Christoph and Baranovskii, Sergei D. and Klar, Peter J. and Thomas, Peter and Goldlücke, Bastian},
note={Article Number: 112116}
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<dcterms:abstract xml:lang="eng">When a strong, though non-Arrhenius temperature dependence of electrical resistivity is observed, one usually concludes that the underlying mechanism is variable-range hopping. Unexpectedly, such observations are also made for many semiconductor systems at elevated temperatures, where a variable-range hopping mechanism seems unlikely. A satisfactory explanation for this observation is still lacking up to now. The authors demonstrate that a non-Arrhenius resistivity behavior may also arise in a band transport picture by thermal activation of charge carriers from a reservoir into the transport-carrying band states, provided the energy distribution of reservoir states is sufficiently broadened or the density of band states exhibits tails.</dcterms:abstract>
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