Shape of bubbles
Abstract
The general form of the equation of motion of an arbitrary domain wall is obtained for materials within the uniaxial anisotropy constant K≫2πM2 (M is the magnetization). In the particular case of a static bubble it leads to the equilibrium equation, determining the dependence of the bubble radius R(z) on the coordinate z along the film thickness. This equation does not have a solution R(z) = constant, i.e. bubbles cannot be cylindrical, but have to be bent.
- Publication:
-
Journal of Applied Physics
- Pub Date:
- March 1979
- DOI:
- 10.1063/1.327053
- Bibcode:
- 1979JAP....50.2204N
- Keywords:
-
- Bubbles;
- Domain Wall;
- Equations Of Motion;
- Magnetic Domains;
- Anisotropy;
- Equilibrium Equations;
- Film Thickness;
- Shapes;
- Solid-State Physics;
- 75.60.Ch;
- 75.70.Kw;
- Domain walls and domain structure;
- Domain structure