Granular substance, magnetic thin film, and magnetic device

A granular substance (1) having soft magnetic properties is provided which contains a matrix (3) composed of a nonmagnetic insulating organic material and ferromagnetic metal particles (2) dispersed in the matrix (3) and having a mean particle size of 50 nm or less, wherein the volume ratio of the m...

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1. Verfasser:	CHOI KYUNG-KU,MURASE TAKU,HIRATSUKA NOBUYUKI,KAKIZAKI KOUICHI
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS ELECTRICITY INDUCTANCES MAGNETS SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES TRANSFORMERS
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creator	CHOI KYUNG-KU,MURASE TAKU,HIRATSUKA NOBUYUKI,KAKIZAKI KOUICHI
description	A granular substance (1) having soft magnetic properties is provided which contains a matrix (3) composed of a nonmagnetic insulating organic material and ferromagnetic metal particles (2) dispersed in the matrix (3) and having a mean particle size of 50 nm or less, wherein the volume ratio of the matrix (3) is in the range of 5 to 50%. When the granular substance (1) is in the form of a film, it has a complex permeability the real part ( mu ') of which is 40 or more at 1 GHz, a quality factor Q (Q = mu '/ mu " where mu " is the imaginary part of the complex permeability) of 1 or more, and a saturation magnetization of 5 kG or more.
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subjects	BASIC ELECTRIC ELEMENTS ELECTRICITY INDUCTANCES MAGNETS SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES TRANSFORMERS
title	Granular substance, magnetic thin film, and magnetic device
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