BROAD-BAND LIGHT-SCATTERING FROM GLASS-FORMING PROPYLENE-GLYCOL

Authors
YOSHIHARA A SATO H KOJIMA S
Citation
A. Yoshihara et al., BROAD-BAND LIGHT-SCATTERING FROM GLASS-FORMING PROPYLENE-GLYCOL, Progress of theoretical physics. Supplement, (126), 1997, pp. 423-426
Citations number
13
Categorie Soggetti
Physics
Journal title
Progress of theoretical physics. Supplement → ACNP
ISSN journal
03759687
Issue
126
Year of publication
1997
Pages
423 - 426
Database
ISI
SICI code
0375-9687(1997):126<423:BLFGP>2.0.ZU;2-R
Abstract
The broadband chi ''(w) spectra of propylene glycol at several tempera tures between 363 K and 240 K were analyzed using a three-relaxator mo del which consists of the alpha and fast relaxations, and the boson pe ak. The resonance frequency of the alpha-relaxation obeys the VTF law, and the others are independent of temperature. The reduced chi ''(w) spectra for the alpha and fast relaxations were compared with the MCT predictions. MCT gives reasonable descriptions only for the temperatur e dependence of the chi ''(w) minimum frequency and the high-frequency tail of the alpha-relaxation in the MCT scaled chi ''(w) spectra.