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arxiv: cond-mat/0002399 · v1 · submitted 2000-02-25 · ❄️ cond-mat.dis-nn · cond-mat.str-el

Interaction-assisted propagation of Coulomb-correlated electron-hole pairs in disordered semiconductors

D. Brinkmann (1) , J.E. Golub (1) , S.W. Koch (1) , P. Thomas (1) , K. Maschke(2) , I. Varga (1 , 3) ((1) Fachbereich Physik Philipps-Universitaet Marburg , Germany
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(2) Institut de Physique Appliquee Ecole Polytechnique Federale de Lausanne Switzerland (3) Institut fuer Theoretische Physik Universitaet zu Koeln Germany)
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classification ❄️ cond-mat.dis-nn cond-mat.str-el
keywords coulomb-correlateddisorderedelectron-holeinteractionaccessibleanalyzedependencedynamical
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A two-band model of a disordered semiconductor is used to analyze dynamical interaction induced weakening of localization in a system that is accessible to experimental verification. The results show a dependence on the sign of the two-particle interaction and on the optical excitation energy of the Coulomb-correlated electron-hole pair.

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