Anisotropy constants of garnet films from stripe domain measurements

We have measured the quasistatice behavior of stripe domains in (111) epitaxial garnet films placed in in‐plane (110) and (112) fields. In films that possess appreciable cubic anisotropy, the domain walls line up perpendicular to applied fields along or near (110), and parallel to fields near (112). In (112) fields the domain magnetization in adjacent stripes is not symmetrical about the film plane, and adjacent stripes are of unequal width. The domain period first shrinks and then expands with increasing field. These results are interpreted by a theory that gives good agreement with the observed behavior, and yields accurate values of the cubic and uniaxial anisotropy constants.