Nonequilibrium dynamical ferromagnetism of interacting Single-Molecule Magnets

Details Nonequilibrium dynamical ferromagnetism of interacting Single-Molecule Magnets Nonequilibrium dynamical ferromagnetism of interacting Single-Molecule Magnets

2009-11-08

arxiv.org/abs/0911.1539v1

APPLIED PHYSICS LETTERS 95, 183110 (2009)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

3 pages

Scientific paper

10.1063/1.3259784

We propose a nonequilibrium Monte Carlo (MC) approach to explore nonequilibrium dynamical ferromagnetism of interacting single molecule magnets (SMMs). Both quantum spin tunneling and thermally activated spin reversal are successfully implemented in the same MC simulation framework. Applied to a typical example, this simulation method satisfactorily reproduces experimental magnetization curves with experimental parameters. Our results show that both quantum and classical effects are essential to determine the hysteresis behaviors. This method is effective and reliable to gain deep insights into SMMs.

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