Finite Lifetime of Spiral Domains in the Anger State of Multidomain Magnetic Films

摘要

The finite lifetime T_g of a dynamic spiral domain in the anger state in a multidomain film with perpendicular magnetic anisotropy is estimated theoretically in the framework of a dissipative model. The finite lifetime of spiral domains is investigated as a function of the frequency of an external ac magnetic field that varies according to a harmonic law.