The Feasibility of$+15$Gb/in$^2$High-Density Recording With Barium-Ferrite Particulate Media and a GMR Head

The feasibility of a high-density magnetic particulate recording medium with a thin magnetic layer of evenly dispersed high-coercivity barium-ferrite particles was investigated. Thermal stability, writability, and an areal recording density of 17.5 Gb/in
$^2$
were confirmed for a flexible disk system using a giant magnetoresistive head.