MAGNETIC PARTICLE, METHOD OF MANUFACTURING THE SAME, MAGNETIC POWDER FOR MAGNETIC RECORDING, AND MAGNETIC RECORDING MEDIUM

摘要

PROBLEM TO BE SOLVED: To provide a hexagonal ferrite magnetic particle suitable for a magnetic recording medium for high density recording which has a high thermal stability.

SOLUTION: The present invention relates to a method of manufacturing a magnetic particle in which heat treatment is performed to a hexagonal ferrite magnetic body in an inert gas atmosphere where temperature is controlled within the range of 600-800°C.

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