Magnetic Domain Patterns Depending on the Sweeping Rate of Magnetic Fields

Abstract

The domain patterns in a thin ferromagnetic film are investigated in both experiments and numerical simulations. Magnetic domain patterns under a zero field are usually observed after an external magnetic field is removed. It is demonstrated that the characteristics of the domain patterns depend on the decreasing rate of the external field, although it can also depend on other factors. Our numerical simulations and experiments show the following properties of domain patterns: a sea-island structure appears when the field decreases rapidly from the saturating field to the zero field, while a labyrinth structure is observed for a slowly decreasing field. The mechanism of the dependence on the field sweeping rate is discussed in terms of the concepts of crystallization.

4 pages, 3 figures

References in corpus (3)

• Hysteresis loops of magnetic thin films with perpendicular anisotropy
• Numerical simulations of two dimensional magnetic domain patterns
• Mechanism for nonequilibrium symmetry breaking and pattern formation in magnetic films

Cited by in corpus (5)

• Nanometric Turing Patterns: Morphogenesis of a Bismuth Monolayer
• Turbulent pattern formation and diffusion in the early-time dynamics in the relativistic heavy-ion collision
• Field sweep rate dependence of magnetic domain patterns: Numerical simulations for a simple Ising-like model
• A Phase Prediction Method for Pattern Formation in Time-Dependent Ginzburg-Landau Dynamics for Kinetic Ising Model without a priori Assumptions on Domain Patterns
• Effects of an oscillating field on pattern formation in a ferromagnetic thin film: Analysis of patterns traveling at a low velocity