MAGNETIC MATERIAL AND MANUFACTURING METHOD OF MAGNETIC MATERIAL

摘要

PROBLEM TO BE SOLVED: To provide a magnetic material which carries magnetic nanoparticles inside spherical silica-based mesoporous bodies and can make the magnetic nanoparticles exert a strong ferromagnetism, and a manufacturing method of magnetic material capable of manufacturing the magnetic material in good efficiency.

SOLUTION: The magnetic material comprises the spherical silica-based mesoporous bodies having an average particle size of 0.01-3 μm and a central pore diameter of 2.6 nm or larger, and ferromagnetic nanoparticles carried in the spherical silica-based mesoporous bodies. The ferromagnetic nanoparticle is selected from the group consisting of single metals having ferromagnetism, CuAu type ferromagnetic ordered alloys, Cu3Au type ferromagnetic ordered alloys and rear earth-based ferromagnetic alloys.

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