Einstein-de Haas Nanorotor

Abstract

We propose a nanoscale rotor embedded between two ferromagnetic electrodes that is driven by spin injection. The spin-rotation coupling allows this nanorotor to continuously receive angular momentum from an injected spin under steady current flow between ferromagnetic electrodes in an antiparallel magnetization configuration. We develop a quantum theory of this angular momentum transfer and show that a relaxation process from a precession state into a sleeping top state is crucial for the efficient driving of the nanorotor by solving the master equation. Our work clarifies a general strategy for efficient driving of a nanorotor.

6 pages, 4 figures

References in corpus (15)

• Global $\Lambda$ hyperon polarization in nuclear collisions: evidence for the most vortical fluid
• Quantum transport in carbon nanotubes
• The Ultrafast Einstein-De Haas Effect
• Einstein--de Haas Effect in Dipolar Bose-Einstein Condensates
• Carbon Nanotube Electron Windmills: A Novel Design for Nanomotors
• Nanospintronics with carbon nanotubes
• Nanomechanical Detection of Itinerant Electron Spin Flip
• Rotational dynamics and friction in double-walled carbon nanotubes
• A Spin-Mechanical Device for Detection and Control of Spin Current by Nanomechanical Torque
• Resonant Einstein-de Haas effect in a rubidium condensate
• Angular momentum and topology in semiconducting single-wall carbon nanotubes
• Valley coupling in finite-length metallic single-wall carbon nanotubes
• The Einstein - de Haas effect at radio frequencies in and near magnetic equilibrium
• Electron spin-vorticity coupling in low and high Reynolds number pipe flows
• Electrical voltage by electron spin-vorticity coupling in laminar ducts

Cited by in corpus (3)

• Chirality as Generalized Spin-Orbit Interaction in Spintronics
• Role of rotations in Stern-Gerlach interferometry with massive objects
• Gyromagnetic bifurcation in a levitated ferromagnetic particle