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Cyclotron Resonance Linewidth in a Two‐Dimensional Electron Gas
Author(s) -
Sarkar C. K.,
Kundu S.,
Basu P. K.
Publication year - 1988
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.2221470114
Subject(s) - laser linewidth , scattering , cyclotron resonance , condensed matter physics , phonon scattering , phonon , mott scattering , electron , fermi gas , resonance (particle physics) , atomic physics , physics , cyclotron , optics , small angle neutron scattering , neutron scattering , quantum mechanics , laser
Cyclotron resonance linewidths due to scattering by phonons and alloy disorder are calculated for a two‐dimensional electron gas formed in a heterojunction. The expression of linewidth for scattering due to acoustic phonons via deformation potential and piezoelectric interaction and for alloy scattering is obtained by including the finite extent of the wavefunction along the direction of quantisation. The screening due to free carriers is considered for electron–phonon interaction. The calculated linewidths for scattering due to deformation potential accoustic phonon and alloy scattering show a B 1/2 variation and a weaker field dependence is obtained for piezoelectric scattering.