International Journal of Pure and Applied Physics

  • Year: 2008
  • Volume: 4
  • Issue: 1

Theoretical analysis of high pressure phase transition and stability of LaTe and SmTe with NaCl-structure

  • Author:
  • Atul Gour1,, Sadhna Singh2, Madhu Singh3, R.K. Singh4
  • Total Page Count: 10
  • DOI:
  • Page Number: 29 to 38

1Centre for Basic Sciences, M.P. Bhoj (Open) University, Gas Rahat Building Govindpura, Bhopal - 462016, India.

2Physics Department, Barkatuallah University, Bhopal, (M.P.), India

3Govt. SGSPG College, Vidhisa, (M.P.), India.

4School of Basic Sciences, MATS University, Raipur, 492002, (India)

*Corresponding Author.: Phys. Department, Barkatullah University, Bhopal, India, phone: 91-7574-256286

PACS No: 61.50 Ks., 61.50 Lt., 61.66-f, 62.20, 64.

Abstract

We have predicted the phase transition pressures and corresponding relative volume change of LaTe and SmTe having NaCl- type structure under high pressure using three body interaction potential (TBIP) approach and found better results with TBIP. In addition we have checked the conditions for relative stability in terms of modified Born certerion and also found that LaTe and SmTe follow the universal equation of state described by Vinet et al.

Keywords

Equation of state, Phase transition, Three body interaction