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arXiv · 2109.10340

Torque-free manipulation of nanoparticle rotations via embedded spins

Yue Ma·M. S. Kim·Benjamin A. Stickler
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Abstract

Spin angular momentum and mechanical rotation both contribute to the total angular momentum of rigid bodies, leading to spin-rotational coupling via the Einstein-de Haas and Barnett effects. Here we show that the revolutions of symmetric nanorotors can be strongly affected by a small number of intrinsic spins. The resulting dynamics are observable with freely rotating nanodiamonds with embedded nitrogen-vacancy centers and persist for realistically-shaped near-symmetric particles, opening the door to torque-free schemes to control their rotations at the quantum level.

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Yue Ma, M. S. Kim, Benjamin A. Stickler. 2021-10-25. Torque-free manipulation of nanoparticle rotations via embedded spins. https://doi.org/10.1103/physrevb.104.134310

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