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Title: Magneto-optical Kerr effect in L10 FePdPt ternary alloys: Experiments and first-principles calculations
Authors: Ma, L.;Hu, J.;Costa, M.;Shi, Z.;Li, J.;Xu, X.G.;Jiang, Y.;Guo, Guang-Yu;Wu, R.Q.;Zhou, S.M.
Contributors: 應物所
Keywords: Experiments;Platinum;Alloy film;First-principles calculation;Hall conductivity;Kerr rotation;Magneto-optical Kerr effects;Spin-down;Spin-orbit couplings;Visible region;Calculations
Date: 2014-05
Issue Date: 2015-06-11 13:40:37 (UTC+8)
Abstract: We have studied the magneto-optical Kerr effect (MOKE) of L10 Fe0.5(Pd1-xPtx)0.5 alloy films with both experiments and first-principles calculations. In the visible region, negative Kerr rotation and ellipticity peaks are, respectively, observed in the regions of 1.5-2.0 eV and 1.7-2.6 eV. These peaks are shifted towards higher energies, and their magnitudes are enhanced for larger x. The MOKE evolution is mainly ascribed to the anomalous Hall conductivity contributed by the spin-down d↓,x2-y2 bands from Pd and Pt. We established a close correlation among the MOKE spectra, the spin orbit coupling strength, and the band feature for this prototypical system. © 2014 AIP Publishing LLC.
Relation: Journal of Applied Physics, 115(18), 論文編號 183903
Data Type: article
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Appears in Collections:[應用物理研究所 ] 期刊論文

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