Abstract
The coupling of free carriers and lattice-vibrational modes in CdS and InSb was investigated by using reflectance measurements. When the free-carrier concentration is such that the longitudinal-optical-mode frequency is at or near the plasma frequency, the longitudinal mode takes on a mixed character and is shifted in a manner similar to that described by Varga in 1965, while the transverse mode remains fixed. The electron effective masses in such a situation can be determined with the lattice effects excluded. In the case of CdS, the polaron mass and additional absorption in the plasma mode above the longitudinal-optical phonon frequency must be taken into account. © 1969 The American Physical Society.
Recommended Citation
T. J. McMahon and R. J. Bell, "Infrared Reflectivity Of Doped InSb And CdS," Physical Review, vol. 182, no. 2, pp. 526 - 530, American Physical Society, Dec 1969.
The definitive version is available at https://doi.org/10.1103/PhysRev.182.526
Department(s)
Physics
International Standard Serial Number (ISSN)
0031-899X
Document Type
Article - Journal
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2023 American Physical Society, All rights reserved.
Publication Date
01 Dec 1969
