Macrospin Tunneling and Magnetopolaritons with Nanomechanical Interference
Open Access
- 4 April 2011
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 106 (14), 147203
- https://doi.org/10.1103/physrevlett.106.147203
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.Keywords
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Funding Information
- Defense Advanced Research Projects Agency
- National Science Foundation
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