Universidad Complutense de Madrid
E-Prints Complutense

Vibrations in glasses and Euclidean random matrix theory

Impacto

Downloads

Downloads per month over past year

Grigera, T.S. and Martín Mayor, Víctor and Parisi, G. and Verrocchio, P. (2002) Vibrations in glasses and Euclidean random matrix theory. Journal of physics-condensed matter, 14 (9). pp. 2167-2179. ISSN 0953-8984

[img]
Preview
PDF
402kB

Official URL: http://dx.doi.org/10.1088/0953-8984/14/9/306




Abstract

We study numerically and analytically a simple off-lattice model of scalar harmonic vibrations by means of Euclidean random matrix theory. Since the spectrum of this model shares the most puzzling spectral features with the high-frequency domain of glasses (non-Rayleigh broadening of the Brillouin peak, boson peak and secondary peak), the Euclidean random matrix theory provide a single and fairly simple theoretical framework to their explanation.


Item Type:Article
Additional Information:

© 2002 IOP Publishing Ltd. International Conference on Scaling Concepts and Complex Systems (2001. Mérida, México)

Uncontrolled Keywords:Frequency propagationg modes; Vitreous silica; Boson peak; Relaxation processes; Forming liquids; Densified SiO(2); Scattering; Dynamics; Excitations; Localization.
Subjects:Sciences > Physics > Physics-Mathematical models
ID Code:46778
Deposited On:22 Mar 2018 09:28
Last Modified:22 Mar 2018 09:28

Origin of downloads

Repository Staff Only: item control page