SOLITON SIGNAL IN THE MAGNETIC CHAIN AT THE EXTERNAL MAGNETIC FIELD NEAR TO CRITICAL VALUE

摘要

There is a critical magnetic field, which separates two different zones fot soliton signals propagation in magnetic chains: the sin-Gordon zone and the Heisenoerg zone. We investigate the fine structure of these signals in the neighborhood of the c ideal field also nonzero soliton velocity. Explicit formulae both for azimuthal kink and meridional soliton are obtained, they take into account the nonlinear interaction of the soliton structures.