Topological defects, pattern evolution, and hysteresis in thin magnetic films

Abstract

Nature of the magnetic hysteresis for thin films is studied by the Monte-Carlo simulations. It is shown that a reconstruction of the magnetization pattern with external field occurs via the creation of vortex-antivortex pairs of a special kind at the boundaries of stripe domains. It is demonstrated that the symmetry of order parameter is of primary importance for this problem, in particular, the in-plane magnetic anisotropy is necessary for the hysteresis.

arXiv commentAccepted to EPL; 7 pages, 3 color figures

References in corpus (5)

• Stripe glasses: self generated randomness in a uniformly frustrated system
• Numerical simulations of two dimensional magnetic domain patterns
• Avoided Critical Behavior in O(n) Systems
• A Monte Carlo study of the three-dimensional Coulomb frustrated Ising ferromagnet
• Close Packing of Atoms, Geometric Frustration and the Formation of Heterogeneous States in Crystals

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