CORE-SHELL MAGNETIC MATERIAL, METHOD OF MANUFACTURING THE CORE-SHELL MAGNETIC MATERIAL, DEVICE ELEMENT, AND ANTENNA DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a core-shell magnetic material which has excellent characteristics in a high-frequency band, especially in the GHz range, while exhibiting high environmental resistance.;SOLUTION: A core-shell magnetic material 100 includes a magnetic member 130 formed by binding multiple core-shell magnetic particles 110, with a binder 120 composed of first resin; and a coating layer 140 that covers the surface of the magnetic member and is composed of second resin which is different from the first resin. The core-shell magnetic particle 110 contains a magnetic metal particle 111 and a coating layer 112, covering at least a part of the surface of the magnetic metal particle. The magnetic metal particle contains at least one magnetic metal selected from among a group consisting of Fe, Co, and Ni, and the coating layer 112 is composed of an oxide, nitride, or carbide that contains at least one magnetic metal.;COPYRIGHT: (C)2011,JPO&INPIT