Gvozdikova M. Nonlinear dynamical excitations in ferromagnets with a strong anisotropy

The objects of study: 1D magnets with a strong exchange or oneion anisotropy. The aim of the study is to investigate the transformation of nonlinear excitations of principal types (domain walls, magnetic solitons, magnetization rotary waves and intrinsic modes of domain walls) in the strong anisotropy case. Methods and equipment are nonlinear Landau-Lifshits equations and Takeno-Homma model. New results: frequency dependencies on exchange interaction value for internal modes of domain walls and magnetic solitons are derived. A new type of magnetic solitons, domain walls and rotary waves with exotic (compacton and peakon) structure is investigated. One-dimensional quantum model for the interactional bosons with a complicate interpartical interaction is proposed for the quasiclassical interpretation of exotic magnetic solitons of different types.