Noise of spin-polarized currents at a beam splitter with local spin-orbit interaction

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2003
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Egues, Jose C.
Loss, Daniel
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Journal of Superconductivity. 2003, 16(2), pp. 237-240. ISSN 0896-1107. eISSN 1572-9605. Available under: doi: 10.1023/A:1023637511442
Zusammenfassung

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 Physik
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noise, spin, spin-polarized transport, spin–orbit, Rashba
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ISO 690BURKARD, 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. 2003, 16(2), pp. 237-240. ISSN 0896-1107. eISSN 1572-9605. Available under: doi: 10.1023/A:1023637511442
BibTex
@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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