Density fluctuation spectra of expanded liquid Rb-85 at different temperatures

Authors
Tewari, SP Sood, J Tandon, P
Citation
Sp. Tewari et al., Density fluctuation spectra of expanded liquid Rb-85 at different temperatures, J NON-CRYST, 281(1-3), 2001, pp. 81-85
Citations number
18
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
JOURNAL OF NON-CRYSTALLINE SOLIDS
ISSN journal
00223093 → ACNP
Volume
281
Issue
1-3
Year of publication
2001
Pages
81 - 85
Database
ISI
SICI code
0022-3093(200103)281:1-3<81:DFSOEL>2.0.ZU;2-8
Abstract
Density fluctuation spectra in expanded liquid Rb-85 measured at 1373 and 1 873 K have been successfully explained using the microscopic theory of dens ity fluctuations in a monatomic liquid. The self-diffusion coefficient occu rring in the intermediate self-correlation function which is inextricably l inked with the collective dynamics of the system, turns out to be frequency dependent and such a consideration also leads to the reproduction of the o bserved peak in dynamical structure factor near 4-5 ps(-1). (C) 2001 Elsevi er Science B.V. All rights reserved.