TY - JOUR
T1 - Magnetism at metal-ceramic interfaces
T2 - effects of a Au overlayer on the magnetic properties of Fe/MgO(001)
AU - Wu, Ruqian
AU - Freeman, A. J.
N1 - Funding Information:
This work is supported by the Department of Energy under Contract DE-FG02-88-ER45372 and a computing grant from BES at the Lawrence
PY - 1994/10
Y1 - 1994/10
N2 - In the search for a benign magnetic substrate with which to explore 2D magnetism in transition metal monolayer, MgO(001) has emerged from studies of the metal-ceramic interface as a prime candidate. Since Au overlayers are now used to prevent oxidation, we have determined their effects on the electronic and magnetic properties of Fe/MgO(001) by means of first principles calculations using the full potential linearized augmented plane wave method. Some Fe-Au hybridization is found which diminishes the giant spin moment in Fe/MgO(001) by 0.14μB. In turn, the Fe layer induces a sizable magnetic moment at the Au site, namely, a 0.069μB spin moment and a 0.042μB orbital moment. A substantial magnetic circular dichroism signal is predicted for Au, which invites experimental verification.
AB - In the search for a benign magnetic substrate with which to explore 2D magnetism in transition metal monolayer, MgO(001) has emerged from studies of the metal-ceramic interface as a prime candidate. Since Au overlayers are now used to prevent oxidation, we have determined their effects on the electronic and magnetic properties of Fe/MgO(001) by means of first principles calculations using the full potential linearized augmented plane wave method. Some Fe-Au hybridization is found which diminishes the giant spin moment in Fe/MgO(001) by 0.14μB. In turn, the Fe layer induces a sizable magnetic moment at the Au site, namely, a 0.069μB spin moment and a 0.042μB orbital moment. A substantial magnetic circular dichroism signal is predicted for Au, which invites experimental verification.
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U2 - 10.1016/0304-8853(94)90197-X
DO - 10.1016/0304-8853(94)90197-X
M3 - Article
AN - SCOPUS:0028530913
VL - 137
SP - 127
EP - 133
JO - Journal of Magnetism and Magnetic Materials
JF - Journal of Magnetism and Magnetic Materials
SN - 0304-8853
IS - 1-2
ER -