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Theory of Free–Carrier Absorption in n‐Type Lead Chalcogenides Due to Electron‐Electron Scattering
Author(s) -
van Huong Nguyen
Publication year - 1983
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.2221180117
Subject(s) - electron , free electron model , absorption (acoustics) , scattering , anisotropy , electron scattering , conduction band , attenuation coefficient , condensed matter physics , free carrier absorption , thermal conduction , physics , materials science , chemistry , atomic physics , optics , quantum mechanics , doping
The theory of the infrared absorption by free carriers in lead chalcogenides of n‐type due to electron‐electron (e–e) interaction is discussed within the model of multivalley, nonspherical, and parabolic conduction band. Only the e‐e scattering of electrons of different valleys contributes to the absorption. A formula for the absorption coefficient for an arbitrary anisotropy of the valleys is derived.