P W O Nyawere1,2, N W Makau1 and G O Amolo1
1University of Eldoret, Kenya 2Kabarak University, Kenya
Posters-Accepted Abstracts: J Material Sci Eng
This is a presentation of electronic and mechanical properties of hexagonal phase of BaF2 by First Principle methods. We have applied density-functional theory within generalized gradient approximation (GGA) using plane-wave pseudopotentials method and a plane-wave basis set. Our computed lattice parameter a is 4.269 ├?┬║ comparable to experimental value of 5.516 ├?┬║ (300 K) while the ratio of b/a in this work is at 1.4894 against experimental value of 1.297. The bulk modulus derived from the elastic constant calculations of hexagonal phase of BaF2 is 161 GPa and value from Murnaghan methods is 154 GPa. The stabilities constants in various crystallographic directions are A1 is 0.015 and A2 is 0.023.
P W O Nyawere has completed his PhD from University of Eldoret through a Sandwich Training in Abdus Salaam International Center for Theoretical Physics, Trieste (Italy). Currently he is teaching Physics at Kabarak University – Kenya. He has published three papers in referred journals and one book “Specific Heat Jump in High TC Superconductors”. Currently, he is interested in First Principle Calculations of bulk materials.
Journal of Material Sciences & Engineering received 3043 citations as per Google Scholar report