The dispersion relation of magnetostatic waves tangentially magnetized to saturation ferrite film, with a "magnetic wall" condition (tangential component of microwave magnetic field is equal to zero) on one of the film surface and with a metal condition on the opposite surface is analyzed. The dispersion characteristics show that unidirectional magnetostatic waves appear in this structure: they can transfer energy in one direction only and fundamentally cannot transfer energy in the opposite direction. The dispersion-free propagation of magnetostatic waves also is possible in the structure in a wide frequency interval. © 2005 Elsevier B.V. All rights reserved.
Lock, E. H., & Vashkovsky, A. V. (2006). Effects of metal and “magnetic wall” on the dispersion characteristic of magnetostatic waves. Journal of Magnetism and Magnetic Materials, 300(1). https://doi.org/10.1016/j.jmmm.2005.10.144