Neutron scattering study of glassy toluene: dynamics of a quasi-rigid molecular glass

被引：10
|
作者：
Tsukushi, I
Yamamuro, O [1 ]
Yamamoto, K
Takeda, K
Kanaya, T
Matsuo, T
机构：
[1] Osaka Univ, Grad Sch Sci, Dept Chem, Osaka 5600043, Japan
[2] Kyoto Univ, Chem Res Inst, Kyoto 6110011, Japan
[3] Naruto Univ Educ, Dept Chem, Tokushima 7728502, Japan
来源：
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS | 1999年 / 60卷 / 8-9期
基金：
日本学术振兴会;
关键词：
glass; organic compounds; neutron scattering; phonons;
D O I：
10.1016/S0022-3697(99)00168-7
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The inelastic neutron scattering spectra of glassy and crystalline toluene doped with 10% of benzene were measured with the three LAM spectrometers in KEK (Tsukuba, Japan). A broad excitation (boson peak) was found in the glassy sample in the energy region below 6 meV; the peak energy was 1.5-3 meV. Above this region, the density of states of the glassy sample was essentially the same as that of the crystalline sample. The quasielastic scattering due to the rotation of the methyl group was found both in the glassy and crystalline samples. (C) 1999 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：1541 / 1543
页数：3
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