Correlation of temperature dependence of quasielastic-light-scattering intensity and α-relaxation time | Zendy

Seiji Kojima | Zendy; V. N. Novikov | Zendy

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Correlation of temperature dependence of quasielastic-light-scattering intensity and α-relaxation time

Author(s) -

Seiji Kojima,

V. N. Novikov

Publication year - 1996

Publication title -

physical review. b, condensed matter

Language(s) - English

Resource type - Journals

eISSN - 1095-3795

pISSN - 0163-1829

DOI - 10.1103/physrevb.54.222

Subject(s) - relaxation (psychology) , quasielastic neutron scattering , materials science , light scattering , scattering , quasielastic scattering , intensity (physics) , correlation function (quantum field theory) , condensed matter physics , physics , nuclear magnetic resonance , thermodynamics , neutron scattering , optics , small angle neutron scattering , dielectric , psychology , social psychology , optoelectronics

Quasielastic light scattering (QLS) in propylene glycol is measured in a temperature interval 95–320 K in order to study the fast relaxation processes. A model of the fast relaxation is proposed that predicts the growth of the QLS as a function of the free volume. By fitting the experimental data on QLS within the framework of the model, the Vogel-Fulcher-Tammann temperature T0 was found. The latter is in good agreement with the value of T0 determined from the temperature dependence of the α-relaxation time

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