A method for atomistic spin dynamics simulations: implementation and examples

2008/06/10 by B. Skubic, B Skubic, J. Hellsvik +5 · 10 citations
Physics and Astronomy · #cond-mat.mtrl-sci

paper · pdf · doi:10.1088/0953-8984/20/31/315203

published as J. Phys.: Condens. Matter 20, 315203 (2008) · 14 pages, 19 figures

arxiv created 2008/06/10 · arxiv updated 2014/04/04

Abstract

We present a method for performing atomistic spin dynamic simulations. A comprehensive summary of all pertinent details for performing the simulations such as equations of motions, models for including temperature, methods of extracting data and numerical schemes for performing the simulations is given. The method can be applied in a first principles mode, where all interatomic exchange is calculated self-consistently, or it can be applied with frozen parameters estimated from experiments or calculated for a fixed spin-configuration. Areas of potential applications to different magnetic questions are also discussed. The method is finally applied to one situation where the macrospin model breaks down; magnetic switching in ultra strong fields.

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