Angular dependence measurement of individual barium ferrite recording particles near the single domain size

Abstract

The switching field angular dependence measurement of individual barium ferrite recording particles with sizes ranging from 55 to 75 nm in diameter were measured via magnetic force microscopy technique. These experimental measurements were then used as a basis to investigate their nucleation mechanism and intrinsic switching modes. Our findings indicate that the effects nonuniform doping of Co-Ti can significantly affect the easy axis nucleation field and the switching mode.