Macrospin Tunneling and Magnetopolaritons with Nanomechanical Interference

Journal article (2011)
Department
QN/Quantum Nanoscience (AS) (TU Delft)
Copyright: American Physical Society
DOI: https://doi.org/doi:10.1103/PhysRevLett.106.147203
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Published Date

04-04-2011

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Source:

Physical Review Letters, 106 (14), 2011

Faculty

Applied Sciences

Department

QN/Quantum Nanoscience

Abstract

We theoretically address the quantum dynamics of a nanomechanical resonator coupled to the macrospin of a magnetic nanoparticle by both instanton and perturbative approaches. We demonstrate suppression of the tunneling between opposite magnetizations and destruction of magnetopolaritons (coherent magnetomechanical oscillations) by nanomechanical interference. The predictions can be verified experimentally by a molecular magnet attached to a nanomechanical bridge.

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