Spin transverse force on spin current in an electric field

Details Spin transverse force on spin current in an electric field Spin transverse force on spin current in an electric field

2005-06-27

arxiv.org/abs/cond-mat/0506676v2

Phys. Rev. Lett. 95, 187203 (2005)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

Revised version for publication, 4 page, 1 figure

Scientific paper

10.1103/PhysRevLett.95.187203

As a relativistic quantum mechanical effect, it is shown that the electric field exerting a transverse force on an electron spin 1/2 only if the electron is moving and the spin is polarized along the electric field. The spin force, analogue to the Lorentz for on an electron charge in a magnetic field, is perpendicular to the electric field and the spin current polarized anong the electric field. This spin-dependent force can be used to understand the zitterbewegung of electron wave packet with spin-orbit coupling and is relevant to the generation of the charge Hall effect driven by the spin current in semiconductors.

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