First-principles study of electronic structure and magnetic properties of L10-ordered FeNi, FePd, and FePt alloys
Khaled Aledealat, Bilal Aladerah, Abdalla Obeidat, Maen Gharaibeh
Abstract
(from 0.98 to 0.92) can transform them from ferromagnetic to antiferromagnetic state. In an antiferromagnetic state, a pseudogap is observed just below fermi energy for each alloy. Moreover, our calculations reveal large magnetocrystalline anisotropies for FePt alloy in the order of 3 meV/f.u. On the other hand, FePd and FeNi show relatively lower values in the range of 0.18-0.42 meV/f.u. Finally, Heisenberg exchange interactions are calculated from first-principles and Green's functions formalism.
Topics & Concepts
Condensed matter physicsMaterials scienceElectronic structurePhysicsMagnetic properties of thin filmsMetallurgical and Alloy ProcessesMagnetic Properties of Alloys