Effect of three-body interactions on the electronic polarizabilities and photoelastic behaviour of alkali halides

1979 ◽  
Vol 91 (1) ◽  
pp. 263-268 ◽  
Author(s):  
J. Shanker ◽  
A. K. G. Lashkari ◽  
V. P. Gupta
Keyword(s):  
Alkali Halides ◽  
Three Body ◽  
Photoelastic Behaviour

Effect of the exchange charge polarization on the photoelastic behaviour of diatomic crystals

1977 ◽  
Vol 55 (17) ◽  
pp. 1510-1511 ◽  
Author(s):  
J. C. Sharma ◽  
H. P. Sharma ◽  
Jai Shanker
Keyword(s):  
Experimental Data ◽  
Shell Model ◽  
Alkali Halides ◽  
Dielectric Constants ◽  
Charge Polarization ◽  
Derivatives Of ◽  
Photoelastic Behaviour

An analysis of the photoelastic behaviour of diatomic crystals is presented on the basis of the shell model including the effect of exchange charge polarizations. The strain derivatives of the electronic polarizabilities and dielectric constants calculated for alkali halides, MgO, ZnS, and CdS crystals compare well with the available experimental data.

scholarly journals Thermophysical and Ultrasonic Properties on Magnesium Oxide

2019 ◽  
Vol 8 (3) ◽  
pp. 1567-1571
Keyword(s):  
Magnesium Oxide ◽  
Body Force ◽  
Present Model ◽  
Alkali Halides ◽  
Lattice Energy ◽  
Relevant Research ◽  
Research Papers ◽  
Densities Of States ◽  
Phonon Dynamics ◽  
Three Body

In present manuscript phonon dynamics of alkaline-earth oxides, MgO by including the three-body interconnections in the framework of ‘van der Waals three-body force shell model’ (VTBFSM) is based on my thorough theoretical study of the relevant research papers on this topic. The studies of lattice energy and other properties made by Huggins and Sakamoto [1] .The instigate work of Kellerman [2] for lattice dynamics of the alkali halides has provided attentive theoretically as well as experimentally. The thermal properties, densities of states (DOS), structure analysis, direction-dependent ultrasonic velocities and Debye velocity of magnesium oxide have been evaluated in present investigation. However, a considerable improvement in computational results has been obtained by the use of the present model and successfully predicted the lattice dynamic of MgO for the study of bulk thermo-elastic properties. The results of this investigation are discussed successfully with available experimental data

Effect of three-body forces on Schottky defect energy of alkali halides

Physica B+C ◽  
1986 ◽  
Vol 142 (2) ◽  
pp. 233-245 ◽  
Author(s):  
Neeta Agnihotri ◽  
S.P. Sanyal ◽  
R.K. Singh
Keyword(s):  
Alkali Halides ◽  
Defect Energy ◽  
Body Forces ◽  
Three Body
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