Temperature dependent dephasing of internal phonons in ionic crystals: picosecond cars measurements in K2SO4 and KClO4 crystals.

Year: 1988

Authors: Righini R., Angeloni L., Castellucci E., Foggi P.

Autors Affiliation: Dipartimento di Chimica, Universita\’ di Firenze, 50121 Florence, Italy

Abstract: The decay time constants of the totally symmetric components of the internal vibrations of K2SO4 and KClO4 crystals have been measured as a function of temperature; the experimental data are interpreted in terms of three- and multi-phonon scattering processes. The role played by isotopic impurities is also discussed.

Journal/Review: JOURNAL OF MOLECULAR STRUCTURE

Volume: 175 (C)      Pages from: 123  to: 128

KeyWords: potassium sulfate
DOI: 10.1016/S0022-2860(98)80063-X


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