Magnetic Field-Induced Fano Profiles in the Absorption Coefficient of Semiconductors
Abstract
A strongly asymmetric, Fano-like resonance profile has been found for magneto-absorption in the states of hot free electron-hole pairs scattered by defects in bulk semiconductors. The renormalization of the absorption profile, compared to that expected from the bare density of states in a high magnetic field, follows from a quasi-one-dimensional character of electronic excitations. The results are valid for absorption by the electronic states of large Landau quantum number where the Coulomb interaction should play a minor role. The resonance shape is in a good qualitattive agreement with experimental observations.
- Publication:
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arXiv e-prints
- Pub Date:
- March 1996
- DOI:
- 10.48550/arXiv.cond-mat/9603133
- arXiv:
- arXiv:cond-mat/9603133
- Bibcode:
- 1996cond.mat..3133B
- Keywords:
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- Condensed Matter