Projective dynamics analysis of magnetization reversal

2003/06/06 by G. Brown, M. A. Novotny, Per Arne Rikvold +1
Biochemistry, Genetics and Molecular Biology · Physics and Astronomy · #Geomagnetism and Paleomagnetism Studies #Magnetic properties of thin films #Theoretical and Computational Physics #cond-mat.mtrl-sci #cond-mat.stat-mech

paper · pdf · doi:10.1016/j.physb.2003.08.093

published as Physica B 343, 195 (2004) · 8 pgs (incl 3 figs) latex. Proceedings for 4th Int'l Symposium on Hysteresis and Micromagnetics (Univ. Salamanca, Spain)

arxiv created 2003/06/06 · openalex publication_date 2003/10/31 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

The computational Projective Dynamics method is used to analyze simulations of magnetization reversal in nanoscale magnetic pillars. It is shown that this method can be used to determine the magnetizations corresponding to the metastable minimum and saddle point in the free energy, and the free-energy barrier associated with those points. For the nanopillars studied here, entropy is found to provide a significant contribution to the free-energy barrier which determines the reversal time scale.

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