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arXiv · 1706.08389

Tunable RKKY interaction in a double quantum dot nanoelectromechanical device

A. V. Parafilo·M. N. Kiselev
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Abstract

We propose a realization of mechanically tunable Ruderman-Kittel-Kasuya-Yosida interaction in a double quantum dot nanoelectromechanical device. The coupling between spins of two quantum dots suspended above a metallic plate is mediated by conduction electrons. We show that the spin-mechanical interaction can be driven by a slow modulation of charge density in the metallic plate. We propose to use Stuckelberg oscillations as a sensitive tool for detection of the spin and charge states of the coupled quantum dots. Theory of mechanical back action induced by a dynamical spin-spin interaction is discussed.

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A. V. Parafilo, M. N. Kiselev. 2018-01-15. Tunable RKKY interaction in a double quantum dot nanoelectromechanical device. https://doi.org/10.1103/physrevb.97.035418

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