Title :
Micromagnetics of strong stripe domains in NiCo thin films
Author :
Labrune, M. ; Miltat, J.
Author_Institution :
Lab. de Phys. des Solides, CNRS, Univ. Paris-Sud, Orsay, France
fDate :
9/1/1990 12:00:00 AM
Abstract :
Numerical 2-D computation of strong stripe domain structures in materials with an oblique easy axis are presented. It is shown that, in zero field, the surface magnetization distribution is winding. Under the action of a field applied parallel to the stripe elongation direction, a winding-to-unwinding surface magnetization transition occurs, which is a source of (topological) hysteresis. A quantitative agreement between the experimental and theoretical hysteresis curves is obtained
Keywords :
cobalt alloys; ferromagnetic properties of substances; magnetic domains; magnetic hysteresis; magnetic surface phenomena; magnetic thin films; magnetic transitions; magnetisation; nickel alloys; 2-D computation; NiCo thin films; hysteresis curves; micromagnetics; oblique easy axis; stripe elongation direction; strong stripe domains; surface magnetization distribution; topological hysteresis; winding distribution; winding-to-unwinding surface magnetization transition; zero field; Anisotropic magnetoresistance; Hysteresis; Magnetic anisotropy; Magnetic domains; Magnetic materials; Micromagnetics; Perpendicular magnetic anisotropy; Q factor; Saturation magnetization; Transistors;
Journal_Title :
Magnetics, IEEE Transactions on
