2012

Effects of surface and interface scattering on anomalous Hall effect in Co/Pd multilayers

Effects of surface and interface scattering on anomalous Hall effect in Co/Pd multilayers
Z.B. Guo, W.B. Mi, R.O. Aboljadayel, B. Zhang, Q. Zhang, P.G. Barba, A. Manchon, and X.X. Zhang​
Phys. Rev. B 86, 104433 (2012)​​​
Z.B. Guo, W.B. Mi, R.O. Aboljadayel, B. Zhang, Q. Zhang, P.G. Barba, A. Manchon, X.X. Zhang
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2012
Abstract In this paper, we report the results of surface and interface scattering on anomalous Hall effect in Co/Pd multilayers with perpendicular magnetic anisotropy. The surface scattering effect has been extracted from the total anomalous Hall effect. By scaling surface scattering contribution with ρAHs∼ ρssγ, the exponent γ has been found to decrease with the increase of surface scattering resistivity, which could account for the thickness-dependent anomalous Hall effect. Interface diffusion induced by rapid thermal annealing modifies not only the magnetization and longitudinal resistivity but also the anomalous Hall effect; a large exponent γ ∼ 5.7 has been attributed to interface scattering-dominated anomalous Hall effect.