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A New k · P Calculation for PbSe
Author(s) -
Bangert E.,
Kastner P.
Publication year - 1972
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.2220540116
Subject(s) - cyclotron , conduction band , valence band , physics , ellipsoid , selenide , condensed matter physics , computational physics , perturbation (astronomy) , magnetic field , atomic physics , chemistry , band gap , quantum mechanics , electron , astronomy , selenium , organic chemistry
The upper valence band and the lowest conduction band of lead selenide are extremely nonparabolic. This is usually explained by the influence of further bands. The experimental values, however, are not consistent with a simple two band model. Therefore a new k · P perturbation treatment is performed involving four bands. Formulae are derived for the energy dependence of cyclotron masses and of the products of cyclotron mass and g‐factor. By comparison with experimental data, all introduced free parameters can be determined. The calculation is restricted to the case that the magnetic field is oriented parallel to the major axis of the carrier ellipsoid.