Spin detection in quantum dots by electric currents

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We develop a theoretical description of transport through quantum dots connected to reservoirs via spin-polarized ballistic contacts. Rate equations account for spin accumulation inside the dot, electron-electron interactions, and stochastic fluctuations. It is shown that both the ac response (admittance) and the frequency-dependent shot noise are governed by spin-flip scattering, which can be used to detect spin polarization and spin-flip processes in the dot.
4 pages; corrected version according to referee's comments

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Mesoscale and Nanoscale Physics

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http://salesiana.dossiersoluciones.com/handle/123456789/22309

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/cond-mat/0309634
 http://arxiv.org/abs/cond-mat/0309634
 Phys. Rev. B 69, 073305 (2004).
 doi:10.1103/PhysRevB.69.073305

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arXiv