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Nonequilibrium dynamical ferromagnetism of interacting single-molecule magnets

Appl. Phys. Lett. 95, 183110 (2009); doi:10.1063/1.3259784

Published 6 November 2009

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Gui-Bin Liu1,2 and Bang-Gui Liu1,2
1Institute of Physics, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
2Beijing National Laboratory for Condensed Matter Physics, Beijing 100190, People's Republic of China
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 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. ©2009 American Institute of Physics
History: Received 30 September 2009; accepted 19 October 2009; published 6 November 2009
Permalink: http://link.aip.org/link/?APPLAB/95/183110/1
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KEYWORDS and PACS

Keywords
PACS
  • 75.60.Ej
    Magnetization curves, hysteresis, Barkhausen and related effects
  • 75.50.Xx
    Molecular magnets
  • 75.10.-b
    General theory and models of magnetic ordering
  • YEAR: 2010

PUBLICATION DATA

ISSN:
0003-6951 (print)   1077-3118 (online)
Publisher:
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