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The peculiar behaviour of transport coefficients in the presence of inelastic scattering by optical phonons
Author(s) -
Kravchenko A. F.,
Kubálková S.,
Morozov B. V.,
Polovinkin V. G.,
Skok E. M.
Publication year - 1975
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.2220720124
Subject(s) - thermomagnetic convection , phonon , inelastic scattering , scattering , boltzmann equation , condensed matter physics , physics , impurity , magnetic field , phonon scattering , computation , quantum mechanics , mathematics , algorithm
A method is developed of calculating galvanomagnetic and thermomagnetic coefficients taking into account successively the inelastic scattering on the polarisation potential of the optical phonons together with the elastic scattering mechanisms. In the approximation of weak magnetic fields, the solution of the Boltzmann transport equation is expanded into a power series of the magnetic field by means of perturbation theory. Numerical computations for n‐GaAs with impurity concentrations of 10 12 to 10 20 cm −3 in the temperature range of 4.2 to 600 °K are made. The results are given as nomograms which are convenient for experimental data processing. The peculiarities of the behaviour of transport coefficients depending on the impurity concentration are analysed.