Properties of Magnetic Films for Memory Systems

Abstract

The technique of using magnetic thin films in computer memory devices is reviewed, and conclusions drawn as to the properties of the film that are required for successful operation of a memory. A description is then given of a series of experiments which were designed to determine the best compromise in properties. Particular importance is attached to the easy axis dispersion, and it is claimed that the addition of a small quantity of cobalt to the nickel iron alloy reduces this despersion by about a factor 3.