MOLECULAR-DYNAMICS STUDY OF THE COHERENT DENSITY CORRELATION-FUNCTION IN A SUPERCOOLED SIMPLE ONE-COMPONENT LIQUID

被引：17
作者：
DZUGUTOV, M
DAHLBORG, U
机构：
[1] Institute of Reactor Physics, Royal Institute of Technology
来源：
JOURNAL OF NON-CRYSTALLINE SOLIDS | 1991年 / 131卷
关键词：
D O I：
10.1016/0022-3093(91)90273-9
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：
The coherent density correlation function, PHI-(Q, t), in a supercooled one-component simple liquid approaching liquid-glass transition was simulated using the molecular dynamics system comprised of 16384 particles. A new pair potential used in this study was constructed to avoid crystal nucleation. The shape of the corresponding dynamical susceptibility spectra chi"(Q, omega) in the alpha- and beta-relaxation frequency ranges has been analyzed, and its wavevector dependence was found to be in good agreement with that predicted by the mode-coupling theory.
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页码：62 / 65
页数：4
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