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Dielectric response theory of phonon‐ and plasmon‐assisted cyclotron resonance
Author(s) -
Chiu K. W.,
Wallace P. R.
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.2220680138
Subject(s) - plasmon , cyclotron resonance , phonon , physics , canonical transformation , absorption (acoustics) , dielectric , condensed matter physics , atomic physics , electron , ion cyclotron resonance , resonance (particle physics) , semiconductor , cyclotron , boson , quantum , optics , quantum mechanics
Abstract The dynamic dielectric response of a polar semiconductor is calculated, taking account of the interaction of the electrons with the longitudinal optical phonons and plasmons, which themselves may in turn be coupled. This permits the calculation of the optical absorption at the “mixed” cyclotron resonances in which the absorption or emission of a boson accompanies a Landau transition. Because of relatively weak coupling, only one‐boson processes need be considered; a canonical transformation eliminating the electron‐boson interaction to first order then gives the required response. The conditions under which two mixed resonances of comparable intensity may be observed are discussed.