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Analyzes the soft magnetic properties of the iron-zirconium-nitrogen ternary system in association with excess nitrogen in films. Definition of the proportion of excess nitrogen for the film composition expressed iron-zirconium-nitrogen; Cause of the advent of soft magnetism; Influence of excess nitrogen on soft magnetic properties.

The effects of reducing barium-ferrite magnetic particle volume have been studied. We optimized barium-ferrite substitution elements and their amount and demonstrated thermal stability for very fine particles of the size 1.5 x 10³ nm³. Using a giant magnetoresistive (GMR) head with a 0.2 µm read track width, test tape containing these fine particles exhibited a bit error rate of 1.5 x 10-4 at a linear density of 360 kbpi using a noise predictive maximum likelihood (NPML) detection for nonstationary noise sources, i.e., data-dependent noise. This corresponds to a 15 Gb/in² areal recording density in linear tape application. [ABSTRACT FROM AUTHOR]