Spin Distribution in Diffraction Pattern of Two-dimensional Electron Gas with Spin-orbit Coupling

Details Spin Distribution in Diffraction Pattern of Two-dimensional Electron Gas with Spin-orbit Coupling Spin Distribution in Diffraction Pattern of Two-dimensional Electron Gas with Spin-orbit Coupling

2011-04-09

arxiv.org/abs/1104.1684v1

Phys. Rev. B 84, 085332 (2011)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

9 pages

Scientific paper

Spin distribution in the diffraction pattern of two-dimensional electron gas by a split gate and a quantum point contact is computed in the presence of the spin-orbit coupling. After diffracted, the component of spin perpendicular to the two-dimensional plane can be generated up to 0.42 $\hbar$. The non-trivial spin distribution is the consequence of a pure spin current in the transverse direction generated by the diffraction. The direction of the spin current can be controlled by tuning the chemical potential.

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