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Wave Vector Dependent Two‐Photon Interband Transitions between Landau Levels
Author(s) -
de Salvo E.,
Girlanda R.
Publication year - 1992
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2221700135
Subject(s) - landau quantization , condensed matter physics , dipole , physics , point reflection , semiconductor , discrete dipole approximation , photon , magnetic dipole , symmetry (geometry) , magnetic field , absorption (acoustics) , quantum mechanics , mathematics , optics , geometry
A perturbative calculation, out of the electric dipole approximation (EDA), of the absorption threshold of the two‐photon interband transitions between the Landau levels of direct gap semiconductors without inversion symmetry is presented. This approach allows to explain with good approximation the absorption peaks with selection rule Δμ = 0, also in a simple two‐band model. As an application, the case of cuprous chloride in a 5T external static magnetic field is considered.