Finite-temperature Simulations for Magnetic Nanostructures

Details Finite-temperature Simulations for Magnetic Nanostructures Finite-temperature Simulations for Magnetic Nanostructures

2005-01-28

arxiv.org/abs/cond-mat/0501692v2

Materials Science Vol. 94, (Springer-Verlag, Berlin, 2007), pp. 97-120

Physics

Condensed Matter

Materials Science

13 pages, 9 figures; v2: updated to include most recent work (with references)

Scientific paper

We examine different models and methods for studying finite-temperature magnetic hysteresis in nanoparticles and ultrathin films. This includes micromagnetic results for the hysteresis of a single magnetic nanoparticle which is misaligned with respect to the magnetic field. We present results from both a representation of the particle as a one-dimensional array of magnetic rotors, and from full micromagnetic simulations. The results are compared with the Stoner-Wohlfarth model. Results of kinetic Monte Carlo simulations of ultrathin films are also presented. In addition, we discuss other topics of current interest in the modeling of magnetic hysteresis in nanostructures, including kinetic Monte Carlo simulations of dynamic phase transitions and First-Order Reversal Curves.

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