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題名: | Magneto-optical Kerr effect in L10 FePdPt ternary alloys: Experiments and first-principles calculations | 作者: | Ma, L.;Hu, J.;Costa, M.;Shi, Z.;Li, J.;Xu, X.G.;Jiang, Y.;Guo, Guang-Yu;Wu, R.Q.;Zhou, S.M. 郭光宇 |
貢獻者: | 應物所 | 關鍵詞: | Experiments; Platinum; Alloy film; First-principles calculation; Hall conductivity; Kerr rotation; Magneto-optical Kerr effects; Spin-down; Spin-orbit couplings; Visible region; Calculations | 日期: | May-2014 | 上傳時間: | 11-Jun-2015 | 摘要: | 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. | 關聯: | Journal of Applied Physics, 115(18), 論文編號 183903 | 資料類型: | article | DOI: | http://dx.doi.org/10.1063/1.4872463 |
Appears in Collections: | 期刊論文 |
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