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arXiv · 2111.02781

Quantum interference tuning of spin-orbit coupling in twisted van der Waals trilayers

Csaba G. Péterfalvi·Alessandro David·Péter Rakyta·Guido Burkard·Andor Kormányos
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Abstract

We show that in van der Waals stacks of twisted hexagonal layers the proximity induced Rashba spin-orbit coupling can be affected by quantum interference. We calculate the quantum phase responsible for this effect in graphene--transition metal dichalcogenide bilayers as a function of interlayer twist angle. We show how this quantum phase affects the spin-polarization of the graphene bands and discuss its potential effect on spin-to-charge conversion measurements. In twisted trilayers symmetries can be broken as well as restored for certain twist angles. This can be used to deduce the effects of induced spin-orbit coupling on spin-lifetime anisotropy and magnetoconductance measurements.

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Csaba G. Péterfalvi, Alessandro David, Péter Rakyta, Guido Burkard, Andor Kormányos. 2021-11-04. Quantum interference tuning of spin-orbit coupling in twisted van der Waals trilayers. https://arxiv.org/abs/2111.02781

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