S S A Razee et al 2001 J. Phys.: Condens. Matter 13 8153 doi:10.1088/0953-8984/13/35/320
Correlation of magnetocrystalline anisotropy of Fe0.5Pd0.5 alloy with chemical order
S S A Razee1, J B Staunton1, D D Johnson2, B Ginatempo3 and E Bruno3
Show affiliationsWe study the magnetocrystalline anisotropy of Fe0.5Pd0.5 alloy using the first-principles spin-polarized relativistic Korringa-Kohn-Rostoker coherent-potential approximation. We investigate the effect of long-ranged chemical order on the magnitude as well as the direction of easy magnetization. We find that in this alloy, the chemical order enhances the magnitude of the magnetocrystalline anisotropy energy as well as altering the easy axis. In particular, for the L10 ordered alloy the easy axis is perpendicular to the alternating layers of Fe and Pd with quite large magnetocrystalline anisotropy energy 124 µeV. These observations are in very good agreement with experiments. We also find that it is the electronic structure in the vicinity of the Fermi surface that is responsible for this effect.
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Issue 35 (3 September 2001)
Received 29 June 2001
Published 16 August 2001
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Correlation of magnetocrystalline anisotropy of Fe0.5Pd0.5 alloy with chemical order
S S A Razee et al 2001 J. Phys.: Condens. Matter 13 8153
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