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Spin detection in quantum dots by electric currents

Eugene G. Mishchenko·Arne Brataas·Yaroslav Tserkovnyak
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Abstract

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.

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Eugene G. Mishchenko, Arne Brataas, Yaroslav Tserkovnyak. 2003-11-13. Spin detection in quantum dots by electric currents. https://doi.org/10.1103/physrevb.69.073305

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