About cookies on this site Our websites require some cookies to function properly (required). In addition, other cookies may be used with your consent to analyze site usage, improve the user experience and for advertising. For more information, please review your options. By visiting our website, you agree to our processing of information as described in IBM’sprivacy statement. To provide a smooth navigation, your cookie preferences will be shared across the IBM web domains listed here.
Publication
Physical Review Letters
Paper
Elastic properties of a network model of glasses
Abstract
A standard model of glasses is shown to exhibit unexpected and remarkably simple elastic properties. For a sequence of networks of decreasing degree or coordination z, the number of zero-frequency vibrational modes (also called degrees of freedom) increases as e-z/ A simple statistical model is given which illuminates this behavior. In addition, the elastic constant c44 decreases as (z-z0); in certain cases other elastic constants also exhibit this behavior. These simple functional relationships appear to hold accurately for all z>z0, where z0 is the critical average degree at which the elastic constants vanish. © 1992 The American Physical Society.