Scattering of volume magnetostatic waves by periodic slot lattices

Scattering of volume magnetostatic waves excited in thin films by the lattices composed of metal ribbons and slots in a metal screen is analyzed. A boundary value problem for the Maxwell equations is formulated and solved in the static approximation. An algorithm for the numerical solution of this boundary value problem is proposed. Scattering of volume magnetostatic waves by 2D periodic lattices of slots that are infinite along one coordinate and finite along the other coordinate is studied for an arbitrary orientation of slots and an arbitrary angle of incidence of the magnetostatic wave. The energy-band structure of lattices is analyzed. The possibility of formation of magnon crystals based on the slot lattices is demonstrated.