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Structural phase transition and high pressure elastic behavior of BX (X= Sb, Bi) compounds

SADHNA SINGH1, MADHU SARWAN1,*

Affiliation

  1. High Pressure Research Lab, Department of Physics, Barkatullah University Hoshngabad Road Bhopal - 462026

Abstract

With the use of three-body potential model, the stability of high pressure structure, the zinc-blend structure, for the BX(X=Sb,Bi) compounds are investigated. We present the calculated pressure for the phase transformation and compare them with other’s thereortical data due to the unavaibility of experimental data. The equation of state curves for both B3 (ZB) and B1(RS) structures obtained are in fairly good agreement with the other’s results. Also the second order elastic constants (SOEC), thermodynamic properties and sound velocities are obtained. Further, the variation of SOEC, thermodynamic properties and sound velocity with pressures are obtained and compared with others..

Keywords

Structural phase transition; Elastic constants; Thermodynamic properties; Boron compounds.

Submitted at: April 7, 2010
Accepted at: Oct. 14, 2010

Citation

SADHNA SINGH, MADHU SARWAN, Structural phase transition and high pressure elastic behavior of BX (X= Sb, Bi) compounds, Journal of Optoelectronics and Advanced Materials Vol. 12, Iss. 10, pp. 2106-2112 (2010)