Abstract: A metal magnetic powder is constituted by metal magnetic grains that each include: a metal phase where the percentage of Fe at its center part is 98 percent by mass or higher, while the mass percentage of Fe at its contour part is lower than that at the center part; and an oxide film covering the metal phase, so as to inhibit oxidation of Fe contained in the metal phase, despite the high content percentage of Fe in the metal phase.

Abstract: An inductor core includes: a tubular magnetic material body formed of a magnetic material, including pores. The tubular magnetic material body includes an inclined portion including an inclined surface which constitutes a peripheral surface of a truncated cone; and a straight trunk portion which is disposed coaxially with the inclined portion, includes an outer peripheral surface which constitutes a peripheral surface of a cylindrical body, and is connected with the inclined portion. A difference between an average value of distances between centers of gravity of the pores in the inclined portion and an average diameter of the pores in the inclined portion, is smaller than a difference between an average value of distances between centers of gravity of the pores in the straight trunk portion and an average diameter of the pores in the straight trunk portion.

Abstract: Acoustically mediated pulsed radiation sources, phased arrays incorporating the radiation sources, and methods of using the radiation sources and phased arrays to generate electromagnetic radiation via magnetic dipole emission are provided. The radiation sources are based on a superlattice heterostructure that supports in-phase magnetic dipole emission from a series of magnetic insulator layers disposed along the length of the heterostructure.

Abstract: The present disclosure relates to a magnonic magnetoresistance (MMR) device and an electronic equipment including the same. According to one embodiment, a core structure of a MMR device may include: a first ferromagnetic insulating layer (Ferro-magnetic Insulator, FMI1); a two-dimensional conductive material layer (Spacer) set on the first ferromagnetic insulating layer; and a second ferromagnetic insulating layer (Ferro-magnetic Insulator, FMI2) set on the two-dimensional conductive material layer. The MMR device of the present disclosure may enhance interface effect in spin electron transmission and thus improve performance of the MMR device.

Abstract: Provided are a magnetic field shield sheet for a wireless charger, a method of manufacturing the sheet, and a receiver for the wireless charger by using the sheet. The sheet includes at least one layer thin magnetic sheet made of an amorphous ribbon separated into a plurality of fine pieces; a protective film that is adhered on one surface of the thin magnetic sheet via a first adhesive layer provided on one side of the protective film; and a double-sided tape that is adhered on the other surface of the thin magnetic sheet via a second adhesive layer provided on one side of the double-sided adhesive tape, wherein gaps among the plurality of fine pieces are filled by some parts of the first and second adhesive layers, to thereby isolate the plurality of fine pieces.

Abstract: A coil component according to one embodiment of the invention includes a core and a winding wound around the core. The core includes a plurality of ferrite crystal grains and a plurality of Bi segregated regions situated at a grain boundary of the plurality of ferrite crystal grains. In one embodiment, a plurality of line profiles obtained by detecting the content of Bi along a plurality of scanning lines intersecting with the grain boundary include at least one first line profile that has a detection peak of Bi at the grain boundary and two or more second line profiles that have no detection peak of Bi.

Abstract: A magnetic powder includes a core portion containing a soft magnetic material, a foundation layer that is provided at a surface of the core portion, that contains an oxide of the soft magnetic material, and that has an average thickness of 0.1 nm or more and less than 10 nm, and an insulating layer that is provided at a surface of the foundation layer, and that contains an organosiloxane compound as a main material, wherein the organosiloxane compound has a C/Si atomic ratio of 0.01 or more and 2.00 or less.

Abstract: The present disclosure relates to integrated circuits, and more particularly, a tunnel magneto-resistive (TMR) sensor with perpendicular magnetic tunneling junction (p-MTJ) structures and methods of manufacture and operation. The structure includes: a first magnetic tunneling junction (MTJ) structure on a first level; a second MTJ structure on a same wiring level as the first MTJ structure; and at least one metal line between the first MTJ structure and the second MTJ structure.

Abstract: A laminated sheet includes a sheet-shaped inductor including a plurality of wirings and a magnetic layer embedding the plurality of wirings, and a processing stability layer disposed on at least one surface 6 in a thickness direction of the inductor. The magnetic layer includes a binder and a magnetic particle having a generally flat shape and whose material is a metal. The processing stability layer includes a cured product of a thermosetting resin composition. The thermosetting resin composition includes a thermosetting resin as an essential component. The thermosetting resin composition includes at least one kind of particle, as an optical component, selected from the group consisting of a first particle having a generally spherical shape and a second particle having a generally flat shape and whose material is an inorganic compound.

Abstract: A magnetic element includes a first free layer, a barrier layer over the first free layer, and a second free layer over the barrier layer. The first free layer includes a first ferromagnetic bilayer and a first amorphous insertion layer (e.g., CoHf) between the first ferromagnetic bilayer. The first ferromagnetic bilayer is selected from CoB, CoFeB, FeB, and combinations thereof. The second free layer includes a second ferromagnetic bilayer and a second amorphous insertion layer (e.g., CoHf) between the second ferromagnetic bilayer. The second ferromagnetic bilayer is selected from CoB, CoFeB, FeB, and combinations thereof. Each of the first and the second amorphous insertion layer independently can be ferromagnetic or non-ferromagnetic and can have a recrystallization temperature of about 300° C. and above. The magnetic element can further include a non-ferromagnetic amorphous buffer layer and/or a non-ferromagnetic amorphous capping layer.

Abstract: The present disclosure generally relates to spin-orbital torque (SOT) differential reader designs. The SOT differential reader is a multi-terminal device comprising a first seed layer, a first spin hall effect (SHE) layer, a first interlayer, a first free layer, a gap layer, a second seed layer, a second SHE layer, a second free layer, and a second interlayer. The gap layer is disposed between the first SHE layer and the second SHE layer. The materials and dimensions used for the first and second seed layers, the first and second interlayers, and the first and second SHE layers affect the resulting spin hall voltage converted from spin current injected from the first free layer and the second free layer, as well as the ability to tune the first and second SHE layers. Moreover, the SOT differential reader improves reader resolution without decreasing the shield-to-shield spacing (i.e., read-gap).

Abstract: A magnetoresistance effect element includes a first ferromagnetic layer, a second ferromagnetic layer, and a non-magnetic layer positioned between the first ferromagnetic layer and the second ferromagnetic layer, and at least one of the first ferromagnetic layer and the second ferromagnetic layer is a Heusler alloy represented by the following General Formula (1): Co2Fe?X???(1) (in Formula (1), X represents one or more elements selected from the group consisting of Mn, Cr, Si, Al, Ga and Ge, and ? and ? represent numbers that satisfy 2.3??+?, ?<?, and 0.5<?<1.9).

Abstract: 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.

Abstract: A magnetic stack includes a substrate and a soft magnetic underlayer deposited on a top surface of the substrate. A heat sink layer is disposed on top of the soft magnetic underlayer, and an interlayer is deposited on top of the heat sink layer. A non-magnetic seed layer is deposited on top of the interlayer. A magnetic recording structure which includes more than one magnetic recording layer is deposited on the top surface of the non-magnetic seed layer.

Abstract: Described are magnetic recording heads that include an overcoat that includes a titanium oxynitride (TiON) layer.

Abstract: According to various embodiments, a spin diode device may include a magnetic tunnel junction stack. The magnetic tunnel junction stack may include a lower magnetic layer, a tunnel barrier layer over the lower magnetic layer, and an upper magnetic layer over the tunnel barrier layer. The lower magnetic layer may include a lower magnetic film. The tunnel barrier layer comprising an insulating material. The upper magnetic layer may include an upper magnetic film. Each of the lower magnetic film and the upper magnetic film may have perpendicular magnetic anisotropy.

Abstract: A wireless power receiving apparatus which wirelessly charges power according to one embodiment of the present invention includes a substrate, a soft magnetic layer which is laminated on the substrate and is formed with a plurality of patterns including at least 3 lines radiated from predetermined points, and a coil which is laminated on the soft magnetic layer and receives electromagnetic energy radiated from a wireless power transmitting apparatus.

Abstract: A magnetic recording medium is provided and includes a layer structure including a magnetic layer, a non-magnetic layer, and a base layer in order, in which an average thickness tT of the magnetic recording medium is 4.0 ?m?tT?5.3 ?m, a dimensional variation ?w in a width direction of the magnetic recording medium to tension change in a longitudinal direction of the magnetic recording medium is 680 ppm/N??w?2000 ppm/N, and an average thickness tn of the non-magnetic layer is tn?1.0 ?m.

Abstract: A magnetic sheet according to the present invention contains Mn—Zn ferrite as a main component and is comprising of a sheet-shaped sintered body. In this magnetic sheet, a difference |?s??c| between a residual stress ?s in a surface layer portion and a residual stress ?c in a central portion at a cross section is 20 MPa or less in absolute value.

Abstract: A magnetic recording tape, in accordance with one aspect of the present invention, includes a substrate, an underlayer formed above the substrate, and a magnetic recording layer formed above the underlayer. The underlayer includes first encapsulated nanoparticles each comprising a first magnetic nanoparticle encapsulated by a first aromatic polymer, and a first polymeric binder binding the first encapsulated nanoparticles. The recording layer includes second encapsulated nanoparticles each comprising a second magnetic nanoparticle encapsulated by an encapsulating layer, and a second polymeric binder binding the second encapsulated nanoparticles.