R V Gopala Rao
Articles written in Pramana – Journal of Physics
Volume 6 Issue 5 May 1976 pp 284-290 Liquids
Mean spherical model-structure of liquid argon
A new formulation for
Volume 9 Issue 6 December 1977 pp 587-592 Liquids
Self diffusion in liquid Na-K alloy
Self diffusion coefficients,
Volume 22 Issue 6 June 1984 pp 523-532 Liquids
Partial structures and compressibilities of ions in fused potassium bromide
R V Gopala Rao Sobhen Kumar Pal
Treating the coulomb interaction between ion species as a perturbation on the Waisman-Lebowitz solution for direct correlation function within the hard core region, the total direct correlation function in K-space has been formulated, which gives a direct method of evaluating the partial structure factors between different ion species of the fused salts through the use of Pearson-Rushbrooke equations. The partial structure factors so obtained have been applied to evaluate the partial radial distribution functions of ion pairs. In addition, many other important associated functions such as the static correlations of total number, mass and charge densities have been computed by particular linear combination of partial structure factors. The charge neutrality relate the partial structure factors to the isothermal compressibility for the wavevector
Volume 43 Issue 3 September 1994 pp 201-209
This paper is mainly concerned with elastic and acoustic properties of vitrous silica besides the computation of phonon frequencies. Thus the phonon frequencies of vitrous silica have been calculated assuming the electronic bulk modulus,
Volume 43 Issue 5 November 1994 pp 409-409 Erratum
Volume 49 Issue 3 September 1997 pp 269-283
R Venkatesh R V Gopala Rao Sumita Bandyopadhyay
Litov and Anderson after various considerations suggested a four constant potential function for a-Se as well as a-As_{2}S_{3}. Hence we also used a four constant potential function with the sole purpose of applying this potential function to obtain several acoustic, thermodynamic and other properties. We calculated several acoustic properties of a-Se like second order elastic constants (SOECs), their pressure derivatives, the longitudinal and transverse Grüneisen constant by two different methods, phonon frequencies, absorption band position through the use of Nath-Smith-Delaunay’s equation, and the thermodynamic properties like heat capacity, bulk modulus, thermal Grüneisen constant, the pressure derivative of the bulk modulus (d
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