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Author Verma, Divesh ♦ Verma, M. L. ♦ Verma, A. ♦ Rathore, R. P. S.
Source IACS Kolkata
Content type Text
Publisher Indian Association for the Cultivation of Science
File Format PDF
Language English
Subject Domain (in DDC) Natural sciences & mathematics ♦ Physics
Subject Keyword Cohesion ♦ Elastic constants ♦ Phonon dispersion
Abstract A model in real space has been developed by extending the generalized form of the exponential potential known as extended generalized exponential potential (EGEP) to account for (a) the correct nature of repulsive and attractive components of forces for all the separations in general and that of small separations in particular, (b) the three-body forces such as volume forces in an indirect way in the framework of EGEP through the parameter n, (c) the dielectric screening functions in an alternative and simpler form through the parameter m. The model is employed to compute the cohesive energy, second-order elastic constants and phenon spectra for fcc platinum. The predictions show promising agreement with experimental findings.
Education Level UG and PG
Learning Resource Type Article
Journal Indian J Phys
Volume Number 78A
Issue Number 3
Page Count 5
Starting Page 337
Ending Page 341