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arXiv · 2008.09857

Pseudospin resonances reveal synthetic spin-orbit interaction

Christoph Rohrmeier·Andrea Donarini
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Abstract

We investigate a spin-full double quantum dot (DQD) coupled to the leads in a pseudospin valve configuration. The interplay of interaction and interference produces in the stability diagram a rich variety of resonances, modulated by the system parameters. In presence of ferromagnetic leads and pseudospin anisotropy, those resonances split, turn into dips and acquire a Fano shape thus revealing a synthetic spin-orbit coupling induced on the DQD. A set of rate equations derived for a minimal model captures those features. The model accurately matches the numerical results obtained for the full system in the framework of a generalized master equation and calculated within the cotunneling approximation.

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Christoph Rohrmeier, Andrea Donarini. 2020-08-22. Pseudospin resonances reveal synthetic spin-orbit interaction. https://doi.org/10.1103/physrevb.103.205420

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