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Hard Simulation Problems in the Modeling of Magnetic Materials: Parallelization and Langevin Micromagnetics

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Computer Simulation Studies in Condensed-Matter Physics XI

Part of the book series: Springer Proceedings in Physics ((SPPHY,volume 84))

Abstract

We present recent results on two attempts at understanding and utilizing large-scale simulations of magnetic materials. In the first study we consider massively parallel implementations on a Cray T3E of the of the n-fold way algorithm for magnetization switching in kinetic Ising models. We find an intricate relationship between the average time increment and the size of the spin blocks on each processor. This narrows the regime of efficient implementation. The second study concerns incorporating noise into micromagnetic calculations using Langevin methods. This allows measurement of quantities such as the probability that the system has not switched within a given time. Preliminary results are reported for arrays of single-domain nanoscale pillars.

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Author information

Authors and Affiliations

  1. Supercomputer Computations Research Institute, Florida State University, 32306-4130, Tallahassee, Florida, USA

    G. Korniss, G. Brown, M. A. Novotny & P. A. Rikvold

  2. Center for Materials Research and Technology and Department of Physics, Florida State University, 32306-3016, Tallahassee, Florida, USA

    G. Brown & P. A. Rikvold

Authors
  1. G. Korniss
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  2. G. Brown
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  3. M. A. Novotny
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  4. P. A. Rikvold
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Editor information

Editors and Affiliations

  1. Center for Simulational Physics, The University of Georgia, 30602, Athens, GA, USA

    David P. Landau Ph.D.  & Heinz-Bernd Schüttler Ph.D.  & 

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© 1999 Springer-Verlag Berlin Heidelberg

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Korniss, G., Brown, G., Novotny, M.A., Rikvold, P.A. (1999). Hard Simulation Problems in the Modeling of Magnetic Materials: Parallelization and Langevin Micromagnetics. In: Landau, D.P., Schüttler, HB. (eds) Computer Simulation Studies in Condensed-Matter Physics XI. Springer Proceedings in Physics, vol 84. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-60095-1_18

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  • DOI: https://doi.org/10.1007/978-3-642-60095-1_18

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-642-64255-5

  • Online ISBN: 978-3-642-60095-1

  • eBook Packages: Springer Book Archive

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