Zobrazeno 1 - 10
of 21
pro vyhledávání: '"Mina Talati"'
Publikováno v:
Journal of Heterocyclic Chemistry. 56:1812-1819
Publikováno v:
Journal of Physics and Chemistry of Solids. 72:934-939
The present paper reports a comprehensive and complementary study on structural, electronic and phonon properties of face centered cubic fluorites, namely CaF2, BaF2 and SrF2, using first principles density functional calculations within the generali
Autor:
Prafulla K. Jha, Mina Talati
Publikováno v:
International Journal of Modern Physics B. 24:1235-1244
The high-pressure induced structural phase transitions and pressure induced elastic and anharmonic behavior of boron compounds viz. BN, BP, and BAs have been investigated using an inter-ionic potential approach based on charge transfer effect. These
Autor:
Prafulla K. Jha, Mina Talati
Publikováno v:
International Journal of Modern Physics B. 23:4767-4777
Temperature dependence of phonons spectra and allied properties of rhombohedral La 0.7 Sr 0.3 MnO 3 are investigated by using the lattice dynamical method. A tendency of phonon mode to instability causing JT lattice distortion is reflected in a softe
Publikováno v:
Materials Science Forum. 570:132-137
The present paper reports a simple calculation of the size and shape dependent melting temperature of nanoparticles. The melting temperature of any nanoparticle basically depends on the ratio of surface atoms to the total atoms. Significant melting t
Autor:
Prafulla K. Jha, Mina Talati
Publikováno v:
Journal of Molecular Structure. 838:227-231
In this work, we present the calculated results phonon properties of rhombohedral ( R 3 ¯ c ) La 0.7 A 0.3 ′ MnO 3 (A′: Sr, Ba and Pb) manganites by using a lattice dynamical model theory. The effect of internal pressure determined by the averag
Autor:
Prafulla K. Jha, Mina Talati
Publikováno v:
Computational Materials Science. 37:58-63
The vibrational modes and low frequency Raman spectra of semiconductor InP nanocrystals embedded in different surrounding matrix have been calculated by using elastic continuum model. The frequency of vibrational modes increases with decrease in size
Autor:
Prafulla K. Jha, Mina Talati
Publikováno v:
Computational Materials Science. 37:64-68
We have reported the results of our theoretical investigations on the vibrational properties of LaMnO 3 in its cubic structure by using lattice dynamical simulation method based on the rigid ion model to understand the role of phonons in these system
Publikováno v:
Physica B: Condensed Matter. 366:153-161
We report a systematic and detailed lattice dynamical investigation on the intrinsic insulating phase of the cobalt oxide superconductor NaCoO 2 . The phonon dispersion curves, partial and total phonon densities of states are obtained. The calculated
Autor:
Mina Talati, Prafulla K. Jha
Publikováno v:
Physica E: Low-dimensional Systems and Nanostructures. 28:171-177
Low-dimensional vibrational modes are calculated using elastic continuum approximation for CeO2 nanoparticles, which considers the nanoparticle as an elastic sphere, embedded in an infinite, homogeneous and isotropic elastic medium and found to decre