Abstract
The theory for the magnetostatic spin‐wave modes has previously been presented for homogeneous nonsymmetric double layers [J. Appl. Phys. 51, 4338 (1980)]. It is now extended to the heterogeneous case, where the magnetizations in the two films are allowed to be different. A restriction is still made with respect to inplane magnetization, transverse propagation of the spin waves, and neglect of exchange. Some limiting cases are found to be in agreement with results obtained by other authors. Patterns of the m‐ and b‐fields of some typical modes are also presented.