Electron scattering from a mesoscopic disk in Rashba system
Jr-Yu Yeh, Chung-Yu Mou, Ming-Che Chang
TL;DR
This paper investigates how Rashba spin-orbit coupling affects electron scattering from a mesoscopic disk, revealing spin polarization effects and analyzing charge and spin current distributions.
Contribution
It provides new insights into spin polarization phenomena induced by Rashba coupling during electron scattering in mesoscopic structures.
Findings
Spin-polarized regions form even with unpolarized incident electrons
Charge and spin current distributions are characterized in the near-field
Symmetry and differential cross-section of scattering are analyzed
Abstract
Electrons with spin-orbit coupling moving in mesoscopic structures can often exhibit local spin polarization. In this paper, we study the influence of the Rashba coupling on the scattering of two-dimensional electrons from a circular disk. It is observed that spin-polarized regions exist, even if the incident electrons are unpolarized. In addition to the distributions of charge and spin current in the near-field region, we also analyze the symmetry and the differential cross-section of the scattering.
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