Title :
Micromagnetic analysis of domain variations in thin films
Author :
Guo, Zhenzhou ; Torre, Edward Della
Author_Institution :
Inst. of Magn. Res., George Washington Univ., Washington, DC, USA
fDate :
11/1/1993 12:00:00 AM
Abstract :
A numerical micromagnetic model is developed that uses an iterative energy minimization method to obtain the domain structure of a soft magnetic thin film under various conditions. This model is used to study domain wall motion and magnetization rotation due to an external field. The results are consistent with domain-level calculations but show much more details. The effects of closure domain on susceptibility are examined. Some stiff modes in the micromagnetic calculations are identified, and an adaptive pushing algorithm is utilized to accelerate the convergence
Keywords :
Permalloy; ferromagnetic properties of substances; iterative methods; magnetic domain walls; magnetic susceptibility; magnetic thin films; magnetisation; minimisation; FeNi film; Permalloy film; adaptive pushing algorithm; closure domain effects; convergence; domain structure; domain wall motion; domain-level calculations; iterative energy minimization method; magnetization rotation; micromagnetic analysis; numerical micromagnetic model; soft magnetic thin film; stiff modes; susceptibility; Acceleration; Iterative methods; Magnetic analysis; Magnetic domain walls; Magnetic films; Magnetization; Micromagnetics; Minimization methods; Numerical models; Transistors;
Journal_Title :
Magnetics, IEEE Transactions on
