Specific heat and elastic properties of BaSnO3 have been investigated for the first time using extended rigid ion model (ERIM). The investigations include the computation of the cohesive energy, Reststrahlen frequency, Debye temperature, Grüneisen parameter, tolerance factor, elastic constants, bulk modulus, shear modulus, Young's modulus and specific heat of BaSnO3. Barium stannate (BaSnO3) exhibits cubic perovskite-like structure, behaves as a semiconductor with a gap of 3.4 eV and stable at high temperatures up to 1273 K. We have found that the elastic constants are in good correlation with the bonding properties. The results have been found to present an overall better interpretation of the available experimental data as compared to those obtained from other theoretical model calculations.
Perovskites, specific heat, elastic properties, debye temperature, cohesive energy
