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Optical Intraband Absorption in Disordered Systems in the Presence of Electron‐Phonon Interaction
Author(s) -
Böttger H.,
Bryksin V. V.
Publication year - 1974
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.2220640205
Subject(s) - absorption (acoustics) , phonon , electron , condensed matter physics , materials science , physics , molecular physics , optics , quantum mechanics
Abstract Using Kubo's formula the optical intraband absorption is studied in two models of disordered systems. The model A is characterized by some few types of atoms and by strong electron‐phonon interaction, the model B by a continuous distribution of atomic levels and by an arbitrary strength of the electron‐phonon interaction. The frequency and temperature dependences of the optical absorption are discussed for both models. For model A the dependence of absorption on the concentrations of the different types of atoms is also investigated.