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Elastic energy density; higher-order elastic constants; anharmonic properties.

An effort has been made for obtaining higher-order elastic constants for MgO starting from basic parameters, viz. nearest-neighbor distance and hardness parameter using Coulomb and Börn–Mayer potentials. These are calculated in a wide temperature range (100–1000 K) and compared with available theoretical and experimental results.

K M Raju¹ R K Srivastava² Kailash³

1. Department of Physics, Mayank Shekhar Degree College, Korauwan, Kanpur Dehat 209 301, India
2. Department of Physics, Bipin Bihari P.G. College, Jhansi 284 001, India
3. Department of Physics, Brahmanand P.G. College, Rath, Hamirpur 210 431, India

Published

September 2007

Manuscript received

14 November 2006

Manuscript revised

8 May 2007

Accepted

8 June 2007