An inductive core including a body including a ferromagnetic material and a magnet, the magnet forming a first path for circulating of magnetic flux lines produced by the magnet, and the ferromagnetic material at least partially forming a second path for circulating the magnetic flux lines, wherein the ferromagnetic material extends continuously between the poles of the magnet along the poles of the magnet and makes contact with at least a part of an exterior lateral wall of the magnet extending between its poles.

A soft magnetic body includes soft magnetic particles containing an element M and an intergranular region that exists between the soft magnetic particles and covers an outer periphery of the soft magnetic particles. On a cross-section of the soft magnetic body, a ratio of the element M at the center of the soft magnetic particles to a ratio of the element M in a soft magnetic composition that constitutes the soft magnetic body is within a range of 10% to 70%. On the cross-section of the soft magnetic body, an average of peripheral lengths of a plurality of the intergranular regions existing at the periphery of the soft magnetic particles is within a range of 5 μm to 15.5 μm.

A coil component that can maintain a high magnetic permeability and improve a DC superposition characteristic, and a method for producing a magnetic powder-containing resin material used to provide such a coil component. A coil component according includes an element body including a coil conductor and a magnetic portion. The coil conductor is formed of a wound conductor wire. The magnetic portion containing metal magnetic material grains covered with an insulating coating, a resin, and insulator grains. The coil component further includes an external electrode electrically connected to an extended portion of the coil conductor and disposed on a surface of the element body. The insulator grains have a relative permeability lower than a relative permeability of the metal magnetic material grains, and the insulator grains and the insulating coating are a compound whose main component is the same.

Provided is soft magnetic powder containing an amorphous metal particle having a composition expressed by a compositional formula Fe.sub.100-a-b-c-d-e-f-gCr.sub.aSi.sub.bB.sub.cC.sub.dAl.sub.eTi.sub.fCo.sub.g. Here, a, b, c, d, e, f, and g are that express atom %, 0<a≤3.0, 5.0≤b≤15.0, 7.0≤c≤15.0, 0.1≤d≤3.0, 0<e≤0.016, 0<f≤0.009, and 0≤g≤0.025.

A method for producing an insulator-coated soft magnetic powder includes: a mixing step of mixing a soft magnetic powder and a ceramic powder to obtain a mixture; a first compression bonding step of pulverizing the ceramic powder by applying mechanical energy to the mixture; and a second compression bonding step of fusing, by applying to the mixture mechanical energy larger than the mechanical energy in the first compression bonding step, the pulverized ceramic powder to surfaces of particles of the soft magnetic powder and obtaining an insulator-coated soft magnetic powder, after the first compression bonding step.

A coil component includes a winding part and a magnetic base body. The winding part is constituted by a wound conductor. The magnetic base body includes a first magnetic portion and a second magnetic portion. The first magnetic portion has first metallic particles bonded together. An average particle diameter of the first metallic particles is a first particle diameter. The second magnetic portion has second metallic particles bonded together. An average particle diameter of the second metallic particles is a second particle diameter. The magnetic base body encapsulates the winding part. The second particle diameter is larger than the first particle diameter. At least a portion of the first magnetic portion is present around the winding part.

A soft magnetic metal powder having soft magnetic metal particles including Fe, wherein a surface of the soft magnetic metal particle is covered by a coating part, the coating part has a first coating part and a second coating part in this order from the surface of the soft magnetic metal particle towards outside, the first coating part includes oxides of Fe as a main component, the second coating part includes a compound of at least one element selected from the group consisting of P, Si, Bi, and Zn, and a ratio of trivalent Fe atom among Fe atoms of oxides of Fe included in the first coating part is 50% or more.

A method of manufacturing a coil component includes arranging a plurality of coil conductors that is a wound body of a conductive wire, and each has opposing first and second surfaces, in a winding axis direction on a surface of an adhesive layer in contact with the first surface, manufacturing a processed body by placing a first magnetic sheet including a first metal magnetic particle and a first resin on a side of the second surface of each of the coil conductors and performing press processing on the first magnetic sheet, manufacturing an aggregate base body by peeling the processed body from the adhesive layer, placing a second magnetic sheet including a second metal magnetic particle and a second resin on a side of the first surface of each coil conductor, and press processing the second magnetic sheet, and manufacturing a body by individualizing the aggregate base body.

Provided is a soft magnetic alloy including Fe as a main component, in which a slope of an approximate straight line, plotted between cumulative frequencies of 20 to 80% on Fe content in each grid of 80000 grids or more, each of which has 1 nm×1 nm×1 nm, is −0.1 to −0.4, provided that Fe content (atom %) of each grid is Y axis, and the cumulative frequencies (%) obtained in descending order of Fe content in each grid is X axis, and an amorphization ratio X is 85% or more.

A soft magnetic composition that includes W-type hexagonal ferrite as a main phase with metal element ratios of: Ba+Sr+Na+K+La:4.7 mol % to 5.8 mol %, where; Ca:0.2 mol % to 5.0 mol %; Fe:72.5 mol % to 86.0 mol %; Co:7.0 mol % to 15.5 mol %; and D:7.0 mol % to 14.8 mol % when: Me(I)=Li+Na+K, Me(II)=Co+Cu+Mg+Mn+Ni+Zn, Me(IV)=Ge+Si+Sn+Ti+Zr+Hf, Me(V)=Mo+Nb+Ta+Sb+W+V, and D=Me (I)+Me(II)−Me (IV)−2×Me (V), and the soft magnetic composition has a coercivity Hcj of 40 kA/m or less.