Nonequilibrium dynamical ferromagnetism of interacting Single-Molecule Magnets

Abstract

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.

3 pages

References in corpus (6)

• Quantum Computing in Molecular Magnets
• Transition times in the Landau-Zener model
• Indirect RKKY interaction in any dimensionality
• Landau Zener method to study quantum phase interference of Fe8 molecular nanomagnets
• Landau-Zener tunneling in the presence of weak intermolecular interactions in a crystal of Mn4 single-molecule magnets
• Dynamics of molecular nanomagnets in time-dependent external magnetic fields: Beyond the Landau-Zener-Stückelberg model

Cited by in corpus (3)

• Monte Carlo simulated dynamical magnetization of single-chain magnets
• Dynamical Monte Carlo investigation of spin reversals and nonequilibrium magnetization of single-molecule magnets
• Non-Arrhenius relaxation of the Heisenberg model with dipolar and anisotropic interactions