Noise of spin-polarized currents at a beam splitter with local spin-orbit interaction
Noise of spin-polarized currents at a beam splitter with local spin-orbit interaction
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2003
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Journal of Superconductivity ; 16 (2003), 2. - pp. 237-240. - ISSN 0896-1107. - eISSN 1572-9605
Abstract
An electronic beam splitter with a local Rashba spin–orbit coupling can serve as a detector for spin-polarized currents. The spin–orbit coupling plays the role of a tunable spin rotator and can be controlled via a gate electrode on top of the conductor. We use spin-resolved scattering theory to calculate the zero-temperature current fluctuations (shot noise) for such a four-terminal device and show that the shot noise is proportional to the spin polarization of the source. Moreover, we analyze the effect of spin–orbit-induced intersubband coupling, leading to an additional spin rotation.
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530 Physics
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noise, spin, spin-polarized transport, spin–orbit, Rashba
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BURKARD, Guido, Jose C. EGUES, Daniel LOSS, 2003. Noise of spin-polarized currents at a beam splitter with local spin-orbit interaction. In: Journal of Superconductivity. 16(2), pp. 237-240. ISSN 0896-1107. eISSN 1572-9605. Available under: doi: 10.1023/A:1023637511442BibTex
@article{Burkard2003Noise-29150, year={2003}, doi={10.1023/A:1023637511442}, title={Noise of spin-polarized currents at a beam splitter with local spin-orbit interaction}, number={2}, volume={16}, issn={0896-1107}, journal={Journal of Superconductivity}, pages={237--240}, author={Burkard, Guido and Egues, Jose C. and Loss, Daniel} }
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