High Pressure Phase Transition and Allied Behavior οf Samarium Compounds

• Authors: M. Singh , A. Gour , S. Singh
• Languages of publication: EN

Abstracts

EN

A theoretical study of the phase transition of samarium monochalcogenides using three-body interaction potential model is carried out at high pressure. The three-body interaction potential includes long range Coulombic, three-body interaction forces and short range overlap repulsive forces operative up to next nearest neighbor ions. We have investigated phase transition pressures, volume collapses, elastic behavior, stability criteria and various thermo physical properties at various high pressure. The results found are well suited with available experimental data. In this paper third order elastic constants are also reported for the first time which helps in understanding the nature of interionic forces in ionic solids which paved the experimentalist to work in specific direction.

Keywords

EN

61.50.Ks; 61.50.Lt; 61.66.-f; 62.20.-x

Discipline

• 62.20.-x: Mechanical properties of solids
• 61.50.Ks: Crystallographic aspects of phase transformations; pressure effects(see also 81.30.Hd in materials science)
• 61.66.-f: Structure of specific crystalline solids(for surface structure, see 68.35.B-)
• 61.50.Lt: Crystal binding; cohesive energy

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2013
• Volume: 123
• Issue: 4
• Pages: 709-713

Dates

published

2013-04

received

2012-03-06

(unknown)

2013-02-16

(unknown)

2013-02-26

Contributors

author

M. Singh

• Govt. Post Graduate College, Ganjbasoda (M.P.), India

author

A. Gour

• Govt. Polytechnic College Physics Department, Harda, Indore Road (M.P.), India

author

S. Singh

• High Pressure Research Lab, Physics Department, Barkatuallah University, Bhopal (M.P.), India

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Identifiers

DOI

10.12693/APhysPolA.123.709