Dynamic structure factor of glassy o-terphenyl: a Brillouin light scattering study

被引:3
|
作者
Monaco, G
Ruocco, G
Comez, L
Fioretto, D [1 ]
机构
[1] Univ Perugia, INFM, I-06100 Perugia, Italy
[2] Univ Aquila, INFM, I-67100 Laquila, Italy
[3] Univ Aquila, Dipartimento Fis, I-67100 Laquila, Italy
[4] Univ Perugia, Dipartimento Fis, I-06100 Perugia, Italy
关键词
D O I
10.1016/S0022-3093(98)00506-7
中图分类号
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
A Brillouin light scattering study of the fragile glass-former o-terphenyl (OTP) has been performed in the glassy state, between 186 and 245 K. The spectra of density fluctuations have been obtained from direct subtraction of depolarized spectra from polarized ones. A. full spectrum analysis has been performed giving evidence of a vibrational relaxation process at about 6 GHz still active in the glassy state. (C) 1998 Published by Elsevier Science B.V. All rights reserved.
引用
收藏
页码:208 / 211
页数:4
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