Ab initio Study of Effect of Co Substitution on the Magnetic Properties   of Ni and Pt-based Heusler Alloys
  Using density functional theory based calculations, we have carried out in-depth studies of effect of Co substitution on the magnetic properties of Ni and Pt-based shape memory alloys. We show the systematic variation of the total magnetic moment, as a function of Co doping. A detailed analysis of evolution of Heisenberg exchange coupling parameters as a function of Co doping has been presented here. The strength of RKKY type of exchange interaction is found to decay with the increase of Co doping. 
Tufan Roy, Aparna Chakrabarti
cond-mat.mtrl-sci