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arXiv · 1011.2242

Macrospin Tunneling and Magnetopolaritons with Nanomechanical Interference

Alexey A. Kovalev·Lorien X. Hayden·Gerrit E. W. Bauer·Yaroslav Tserkovnyak
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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 by nanomechanical interference. By approximating the macrospin as a two-level system, we describe magnetopolaritons and their destruction by interference. The predictions can be verified experimentally by a molecular magnet attached to a nanomechanical bridge.

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Alexey A. Kovalev, Lorien X. Hayden, Gerrit E. W. Bauer, Yaroslav Tserkovnyak. 2011-04-25. Macrospin Tunneling and Magnetopolaritons with Nanomechanical Interference. https://doi.org/10.1103/physrevlett.106.147203

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