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arXiv · 1104.3995

Limit-Cycles and Chaos in the Current Through a Quantum Dot

Carlos López-Monís·Clive Emary·Gerold Kiesslich·Gloria Platero·Tobias Brandes
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Abstract

We investigate non-linear magneto-transport through a single level quantum dot coupled to ferromagnetic leads, where the electron spin is coupled to a large, external (pseudo)spin via an anisotropic exchange interaction. We find regimes where the average current through the dot displays self-sustained oscillations that reflect the limit-cycles and chaos and map the dependence of this behaviour on magnetic field strength and the tunnel coupling to the external leads.

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Carlos López-Monís, Clive Emary, Gerold Kiesslich, Gloria Platero, Tobias Brandes. 2012-04-11. Limit-Cycles and Chaos in the Current Through a Quantum Dot. https://doi.org/10.1103/physrevb.85.045301

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