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Ultrafast Magnetism I pp 162–165Cite as

Coarse-Graining Approach to Atomistic Spin Dynamics

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Part of the book series: Springer Proceedings in Physics ((SPPHY,volume 159))

Abstract

We introduce a coarse-graining approach to study the movement of a Domain Wall (DW) under the influence of a spin polarized current, in the framework of atomistic spin dynamics. An increase in performance of up to 35 % is obtained. We show the dependence of the method on both exchange range and temperature effects.

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References

  1. D.C. Ralph and M.D. Stiles, “Spin transfer torques” J. Mag. Magn. Mat. 320 (7)1190-1216, (2008).

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  2. B. Skubic, J. Hellsvik, L. Nordström, and O. Eriksson, “A method for atomistic spin dynamics simulations: implementation and examples” J. Phys. Cond. Matt., 20 (31):315203, (2008).

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  3. A. Bergman et al., “Magnon softening in a ferromagnetic monolayer: A first principles spin dynamics study” Phys. Rev. B 81:144416, (2010).

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  4. J. Chico et al. “Thermally driven domain wall motion in Fe on W(110)” submitted to PRB

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Acknowledgments

We gratefully acknowledge the European Research Council (ERC Project No. 247062-ASD), the Swedish Research Council (VR), the Knut and Alice Wallenberg Foundation, the Carl Tryggers Foundation, and the G\”oran Gustafsson Foundation for financial support. O.E. and A.B acknowledges eSSENCE.

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Authors and Affiliations

  1. Deparment of Physics and Astronomy, Division of Materials Theory, Uppsala University, Box 516, 75210, Uppsala, Sweden

    T. Nystrand, J. Venemalm, J. Werpers, O. Eriksson, J. Chico & A. Bergman

Authors
  1. T. Nystrand
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  2. J. Venemalm
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  3. J. Werpers
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  4. O. Eriksson
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  5. J. Chico
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  6. A. Bergman
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Corresponding author

Correspondence to J. Chico .

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Editors and Affiliations

  1. Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS), Université de Strasbourg and CNRS, Strasbourg, France

    Jean-Yves Bigot

  2. Department of Physics, University of Kaiserslautern, Kaiserslautern, Germany

    Wolfgang Hübner

  3. Institute for Molecules and Materials (IMM), Radboud University, Nijmegen, The Netherlands

    Theo Rasing

  4. Physics Department, The University of York, York, United Kingdom

    Roy Chantrell

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© 2015 Springer International Publishing Switzerland

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Cite this paper

Nystrand, T., Venemalm, J., Werpers, J., Eriksson, O., Chico, J., Bergman, A. (2015). Coarse-Graining Approach to Atomistic Spin Dynamics. In: Bigot, JY., Hübner, W., Rasing, T., Chantrell, R. (eds) Ultrafast Magnetism I. Springer Proceedings in Physics, vol 159. Springer, Cham. https://doi.org/10.1007/978-3-319-07743-7_52

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