Phys. Rev. B 59, 1105–1112 (1999)Correlation of spin and orbital anisotropies with chemical order in Fe0.5Pd0.5 alloy films using magnetic circular x-ray dichroismReceived 24 February 1998; revised 28 July 1998; published in the issue dated 1 January 1999 The effects of chemical ordering in thin film Fe0.5Pd0.5 alloys, deposited by molecular-beam epitaxy directly on a MgO (001) substrate, have been studied using magnetic circular x-ray dichroism (MCXD) at the Pd and Fe L2,3 edges. This system exhibits perpendicular magnetic anisotropy if grown in the L10 (001) phase and in-plane anisotropy in the disordered γ phase. We show that MCXD is a sensitive tool for studying variations in the spin and orbital magnetic moments due to changes in the chemical order. We obtain quantitative results for spin and orbital anisotropies and their variations with chemical order in the Fe0.5Pd0.5 alloy system. © 1999 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevB.59.1105
DOI:
10.1103/PhysRevB.59.1105
PACS:
75.30.Gw, 75.50.Bb, 75.70.Ak, 78.20.Fm
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