Format:
Online-Ressource
ISSN:
1610-1642
Content:
Abstract: We study the relaxation of a non‐equilibrium carrier distribution under the influence of the electron‐electron interaction in the presence of disorder. Based on the Anderson model, our Hamiltonian is composed from a single particle part including the disorder and a two‐particle part accounting for the Coulomb interaction. We apply the equation‐of‐motion approach for the density matrix, which provides a fully microscopic description of the relaxation. Our results show that the nonequilibrium distribution in this closed and internally interacting system relaxes exponentially fast during the initial dynamics. This fast relaxation can be described by a phenomenological damping rate. The total single particle energy decreases in the redistribution process, keeping the total energy of the system fixed. It turns out that the relaxation rate decreases with increasing disorder. (© 2008 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
In:
volume:5
In:
number:3
In:
year:2008
In:
pages:699-702
In:
extent:4
In:
Physica status solidi / C. C, Current topics in solid state physics, Berlin : Wiley-VCH, 2002-2017, 5, Heft 3 (2008), 699-702 (gesamt 4), 1610-1642
Language:
English
DOI:
10.1002/pssc.200777553
URN:
urn:nbn:de:101:1-2023072705075807759648
URL:
https://doi.org/10.1002/pssc.200777553
URL:
https://nbn-resolving.org/urn:nbn:de:101:1-2023072705075807759648
URL:
https://d-nb.info/1297408756/34
URL:
https://doi.org/10.1002/pssc.200777553
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