Low-frequency Raman scattering from glassy and supercooled liquid benzophenone

被引：15

作者：

Davydova, NA

Mel'nik, VI

Nelipovitch, KI

Baran, J

机构：

[1] Natl Acad Sci Ukraine, Inst Phys, UA-03028 Kiev, Ukraine

[2] Polish Acad Sci, Inst Low Temp & Struct Res, PL-50329 Wroclaw, Poland

来源：

JOURNAL OF MOLECULAR STRUCTURE | 2001年 / 563卷

关键词：

benzophenone; boson peak; low-frequency Raman scattering; glass transition;

D O I：

10.1016/S0022-2860(01)00448-3

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The temperature dependence of the low-frequency Raman scattering from benzophenone was determined in both directions: when cooling liquid benzophenone and when heating the glassy state in the temperature range 12-330 K with a glass transition temperature at 212 K. Comparisons of the Raman spectra with thermal properties are presented. Strong experimental evidence for the presence of a medium-range order (crystalline structure remains within several coordination spheres) in glassy and supercooled liquid benzophenone was obtained. (C) 2001 Elsevier Science B.V, All rights reserved.

引用

页码：105 / 109

页数：5

共 14 条

[1] LOW-ENERGY MODES IN PHOSPHATE-GLASSES - A COMPARISON WITH THE SOFT POTENTIAL MODEL [J].