Physics – Condensed Matter – Mesoscale and Nanoscale Physics
Scientific paper
2009-04-07
Phys. Rev. B 80, 041311(R) (2009)
Physics
Condensed Matter
Mesoscale and Nanoscale Physics
4 pages, 2 figures, final version
Scientific paper
10.1103/PhysRevB.80.041311
The spin-dependent elastic reflection of quasi two-dimensional electrons from a lateral impenetrable barrier in the presence of band-structure spin-orbit coupling results in a spin angular impulse exerted on the electrons which is proportional to the nontrivial difference between the electrons' momentum and velocity. Even for an unpolarized incoming beam we find that the spin angular impulse is nonzero when averaged over all components of the reflected beam. We present a detailed analysis of the kinematics of this process.
Teodorescu V.
Winkler Reinhard
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