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High Density Magnetic Recording Media

IP.com Disclosure Number: IPCOM000041037D
Original Publication Date: 1987-May-01
Included in the Prior Art Database: 2005-Feb-02

Publishing Venue

IBM

Related People

Authors:
Nunnelley, LL Simmons, RG [+details]

Abstract

A magnetic recording medium is made of a mixture of at least types of particles having opposite and equal temperature de- pendence of coercivity in the range of 0oC to 100oC. The mixture results in a magnetic medium exhibiting negligible temperature dependence of coercivity. One such mixture is equal weight of barium ferrite particles and cobalt surface modified iron oxide particles.