Anisotropy of heavy transition metal dopants in Co

摘要

Evaluating prospects for new transition-metal-rich and lanthanide-free permanent magnets, we calculate the magnetocrystalline anisotropy of dilute Co_(1-x) and Co_(1-x)Pd_x alloys. The ab initio calculations are done by using the full-potential linear augmented plane wave method, treating exchange and correlation within the generalized gradient approximation. The anisotropy contributions, 11.9 kJ/m~3 per at. % Pd and 10.8 kJ/m~3 per at. % Pt, are in a range suitable for permanent magnets application.