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Relativistic effects in scattering of polarized electrons

分極した電子の散乱に対する相対論的効果

Sushkov, O. P.*; Milstein, A. I.*; 森 道康  ; 前川 禎通

Sushkov, O. P.*; Milstein, A. I.*; Mori, Michiyasu; Maekawa, Sadamichi

The right-left asymmetry (skew scattering) and the side jump effect are manifestations of the spin-orbit interaction in scattering of polarized electrons. While the side jump effect is less known than the right-left asymmetry, the effect is of conceptual importance for generic spin-orbital physics, and the effect is widely discussed in spintronics. We reexamine the side jump effect accounting for the exact nonperturbative electron wave function inside the atom/impurity/host atomic core. We find that the size of the effect is much smaller than estimates accepted in the literature. The reduction factor is 1/$$Z$$$$^{2}$$, where $$Z$$ is the nuclear charge. This implies that the side jump effect is practically irrelevant, the skew scattering and/or the intrinsic mechanism always dominate the transverse deflection of the electron beam and hence dominate the anomalous Hall and spin Hall effects.

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パーセンタイル:50.87

分野:Physics, Multidisciplinary

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