The dynamical structure factor in topologically disordered systems

被引：33

作者：

Martin-Mayor, V

Mézard, M

Parisi, G

Verrocchio, P

机构：

[1] Univ Roma La Sapienza, Dipartimento Fis, Sez INFM, I-00185 Rome, Italy

[2] Univ Paris Sud, Lab Phys Theor & Modeles Stat, F-91405 Orsay, France

[3] Univ Roma La Sapienza, Unita INFM, I-00185 Rome, Italy

[4] Univ Trent, Dipartimento Fis, I-38050 Trento, Italy

来源：

JOURNAL OF CHEMICAL PHYSICS | 2001年 / 114卷 / 18期

关键词：

D O I：

10.1063/1.1349709

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：

A computation of the dynamical structure factor of topologically disordered systems, where the disorder can be described in terms of Euclidean random matrices, is presented. Among others, structural glasses and supercooled liquids belong to that class of systems. The computation describes their relevant spectral features in the region of the high frequency sound. The analytical results are tested with numerical simulations and are found to be in very good agreement with them. Our results may explain the findings of inelastic x-ray scattering experiments in various glassy systems. (C) 2001 American Institute of Physics.

引用

页码：8068 / 8081

页数：14

共 55 条

[1]

ALLEND PL, CONDMAT9907132

[2]

ANGELANI L, CONDMAT0007241

[3] The role of localization in glasses and supercooled liquids [J].