Macrospin Tunneling and Magnetopolaritons with Nanomechanical Interference
Mesoscale and Nanoscale Physics
2011-04-27 v2
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.
Cite
@article{arxiv.1011.2242,
title = {Macrospin Tunneling and Magnetopolaritons with Nanomechanical Interference},
author = {Alexey A. Kovalev and Lorien X. Hayden and Gerrit E. W. Bauer and Yaroslav Tserkovnyak},
journal= {arXiv preprint arXiv:1011.2242},
year = {2011}
}
Comments
4.4 pages, 3 figures. Slightly revised presentation, results unchanged