Articles written in Pramana – Journal of Physics
Volume 20 Issue 4 April 1983 pp 267-277 Crystallography
Using the continuum theory of linear elasticity, Huang diffuse scattering (
Volume 20 Issue 4 April 1983 pp 279-286 Crystallography
Using the continuum theory of linear elasticity, diffuse x-ray scattering has been calculated in the immediate neighbourhood of Bragg peaks from point defects in a lattice containing more than one atom in the unit cell. General expressions are obtained for the Debye-Waller factor, Huang diffuse scattering and the asymmetric scattering due to the defect. For lattices with one atom per unit cell, these expressions reduce to the well-known formulae of diffuse scattering.
Volume 20 Issue 6 June 1983 pp 503-515 Solid State Physics
Volume 39 Issue 4 October 1992 pp 329-341
We report the results of Monte Carlo simulation of the phase diagram and oxygen ordering in YBa2Cu3O6+
Volume 41 Issue 1 July 1993 pp 41-49
We report the results of the Monte Carlo simulation of the phase diagram of fcc binary alloys using a 3-D Ising model with nearest and next-nearest neighbour repulsive interactions. Calculations are carried out for a ratio of second- to first-neighbour interaction energies of 0.4. The resulting phase diagram contains three superstructures A2B2, A2B and A5B, each separated by a disordered fcc phase. There was no evidence for the formation of an A3B phase. These results are in qualitative agreement with CVM results.
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