LOG-NORMAL SPECTRUM OF LOW-ENERGY VIBRATIONAL EXCITATIONS IN GLASSES

被引：113

作者：

MALINOVSKY, VK

NOVIKOV, VN

SOKOLOV, AP

机构：

[1] Institute of Automation and Electrometry, Siberian Branch, the Academy of Sciences

来源：

PHYSICS LETTERS A | 1991年 / 153卷 / 01期

关键词：

D O I：

10.1016/0375-9601(91)90363-D

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

It is shown that the spectrum of excess low-energy (E approximately 2-10 meV) density of vibrational states in glasses founded by inelastic neutron scattering is described by a log-normal law with a universal standard deviation of log E. This regularity is explained within the framework of the cluster model of glass structure.

引用

页码：63 / 66

页数：4

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