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≫2πM^{2} (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;
 SolidState Physics;
 75.60.Ch;
 75.70.Kw;
 Domain walls and domain structure;
 Domain structure