536results about How to "Excellent magnetic properties" patented technology

Provided is a composite magnetic material which provides superior magnetic properties such as magnetic permeability and core loss, and practical strength, and a manufacturing method for a composite magnetic material which improves the moldability of the dust core and lowers manufacturing costs. A composite magnetic material for an inductor which combines soft magnetic metal particles with a non-magnetic material and a manufacturing method thereof, wherein a first binder composed of a non-magnetic material is mixed at a specific ratio in soft magnetic metal particles; the mixture is molded into the desired shape; the molded body is heat treated under specified conditions; and a second binder composed of one or two or more materials selected from the group composed of silicone resin, organic resin, and water glass is impregnated under the specified conditions into the molded body after the heat treatment.

A magnetoresistive effect element (1) has an arrangement in which a pair of ferromagnetic material layers (magnetization fixed layer (5) and magnetization free layer (7)) is opposed to each other through an intermediate layer (6) to obtain a magnetoresistive change by causing a current to flow in the direction perpendicular to the layer surface and in which the ferromagnetic material layers are annealed by anneal including rotating field anneal and the following static field anneal. A magnetic memory device comprises this magnetoresistive effect element (1) and bit lines and word lines sandwiching the magnetoresistive effect element (1) in the thickness direction. When the magnetoresistive effect element (1) and the magnetic memory device are manufactured, the ferromagnetic material layers (5, 7) are annealed by rotating field anneal and the following static field anneal. There are provided the magnetoresistive effect element that can obtain excellent magnetic characteristics by controlling magnetic anisotropies of the ferromagnetic material layers, the magnetic memory device including this magnetoresistive effect element and which may have excellent write characteristics, and methods for manufacturing these magnetoresistive effect element and magnetic memory device.

This method produces a magnetic material containing magnetic powder, a rare earth element, iron, and boron, forming a mixture with an amorphous metal in which the atomic proportion of the rare earth element is in a range of 22-44 atomic percent and the atomic proportion of the boron is in a range of 6-28 atomic percent and heating to a temperature of 30 DEG C lower than the crystallization temperature of the amorphous metal or higher, or, when the amorphous metal is a metallic glass, to the glass transition temperature thereof or higher.