PHASE-DIAGRAMS OF UNIAXIAL MAGNETIC-FILMS IN MAGNETIC-FIELD

This paper presents the results of a theoretical study of inhomogeneou s magnetic states (a stripe domain structure and a hexagonal bubble la ttice) that exist in uniaxial magnetic films with an arbitrary deviati on of the easy magnetization axis from the normal n parallel to e(z) t o the developed surface, in the vicinity of lines of reorientational p hase transitions, induced by a magnetic field H = H(perpendicular to)e (x) + H(parallel to)e(z). For the reorientational phase transitions a form of the state diagram on the (H-parallel to,H-perpendicular to) pl ane is determined. The effects of magnetization fluctuations on the re sults obtained an discussed.