Authors

Citation

R. Venkatesh, STATIC AND DYNAMIC PROPERTIES OF LIQUID SILICON, Indian Journal of Pure & Applied Physics, 33(5), 1995, pp. 236-242

Citations number

NO

Language

INGLESE

art.tipo

Article

Categorie Soggetti

Physics

Journal title

ISSN journal

0019-5596

Volume

33

Issue

5

Year of publication

1995

Pages

236 - 242

Database

ISI

SICI code

0019-5596(1995)33:5<236:SADPOL>2.0.ZU;2-Z

Abstract

The potential function of liquid silicon has been calculated through P
ercus Yevick, hypernetted chain and Rao Joardar's equation. From the p
otential function, the Bhatia-Singh's beta and delta parameters have b
een calculated. The phonon frequencies have been computed through the
use of Takeno Goda and Bhatia-Singh's equations. From the slopes of om
ega(L)(k) and omega(T)(k) the elastic constants have been obtained. It
is found that in the case of Bhatia-Singh and Takeno and Goda the slo
pes of omega versus k are the same and hence they give the same elasti
c constants. From the elastic constants and using Nath's equation we h
ave calculated the absorption band position of liquid Si which comes a
t about the same position as that in solid state. The calculated longi
tudinal phonon frequencies through Bhatia Singh's equations have been
used to evaluate the frequency dependent structure factor S(k, omega)
versus omega in the range k = 1.4 to 3.9 Angstrom A(-1). It is found t
hat at low k, S(S omega) shows characteristics similar to that of liqu
id Rb and Li. At higher values of k it becomes a single peaked curve r
esembling that of S-s(S omega), the self part of the dynamic structure
factor. Thus it is found that qualitatively liquid silicon resembles
metallic Rb and Li.