Propagation of Coulomb-correlated electron-hole pairs in semiconductors with correlated and anticorrelated disorder
| Autor: | Imre Varga, Torsten Meier, K. Maschke, Stephan W. Koch, Peter Thomas, J. E. Golub, T. Lemm |
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| Rok vydání: | 2000 |
| Předmět: |
Physics
Condensed Matter - Materials Science Condensed matter physics Strongly Correlated Electrons (cond-mat.str-el) business.industry Carrier generation and recombination Materials Science (cond-mat.mtrl-sci) FOS: Physical sciences Disordered Systems and Neural Networks (cond-mat.dis-nn) Condensed Matter - Disordered Systems and Neural Networks Condensed Matter Physics 3. Good health Electronic Optical and Magnetic Materials Condensed Matter - Strongly Correlated Electrons Delocalized electron Semiconductor Position (vector) Coulomb business Ultrashort pulse Quantum Excitation |
| DOI: | 10.48550/arxiv.cond-mat/0002424 |
| Popis: | Local ultrafast optical excitation of electron-hole pairs in disordered semiconductors provides the possibility to observe experimentally interaction-assisted propagation of correlated quantum particles in a disordered environment. In addition to the interaction driven delocalization known for the conventional single-band TIP-(two-interacting-particles)-problem the semiconductor model has a richer variety of physical parameters that give rise to new features in the temporal dynamics. These include different masses, correlated vs. anticorrelated disorder for the two particles, and dependence on spectral position of excitation pulse. Comment: 4 pages and 5 ps figures |
| Databáze: | OpenAIRE |
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