There are provided a method for producing a magnetic refrigeration material whose magnetic transition temperature can be adjusted with high accuracy, and a magnetic refrigeration material whose magnetic transition temperature has been adjusted with high accuracy. The magnetic refrigeration material production method of the present invention includes the steps of: preparing a first predetermined magnetic refrigeration material and a second predetermined magnetic refrigeration material which differs from the first magnetic refrigeration material; and mixing the first magnetic refrigeration material and the second magnetic refrigeration material to obtain a third magnetic refrigeration material. The content of the first magnetic refrigeration material and the content of the second magnetic refrigeration material in the third magnetic refrigeration material are determined by the magnetic transition temperatures of the first magnetic refrigeration material and the second magnetic refrigeration material and by a target magnetic transition temperature of the third magnetic refrigeration material. The magnetic refrigeration material of the present invention includes at least a first predetermined magnetic refrigeration material and a second predetermined magnetic refrigeration material which differs from the first magnetic refrigeration material. The absolute value of the difference between the magnetic transition temperature of the present magnetic refrigeration material and a target magnetic transition temperature is 0.7 K or less.

There are provided a method for producing a magnetic refrigeration material whose magnetic transition temperature can be adjusted with high accuracy, and a magnetic refrigeration material whose magnetic transition temperature has been adjusted with high accuracy. The magnetic refrigeration material production method of the present invention includes the steps of: preparing a first predetermined magnetic refrigeration material and a second predetermined magnetic refrigeration material which differs from the first magnetic refrigeration material; and mixing the first magnetic refrigeration material and the second magnetic refrigeration material to obtain a third magnetic refrigeration material. The content of the first magnetic refrigeration material and the content of the second magnetic refrigeration material in the third magnetic refrigeration material are determined by the magnetic transition temperatures of the first magnetic refrigeration material and the second magnetic refrigeration material and by a target magnetic transition temperature of the third magnetic refrigeration material. The magnetic refrigeration material of the present invention includes at least a first predetermined magnetic refrigeration material and a second predetermined magnetic refrigeration material which differs from the first magnetic refrigeration material. The absolute value of the difference between the magnetic transition temperature of the present magnetic refrigeration material and a target magnetic transition temperature is 0.7 K or less.

A magnetic device includes a pinned layer having an in-plane magnetization direction; a free layer, having an in-plane magnetization direction, vertically spaced apart from the pinned layer to be aligned with the pinned layer; a conductive spacer layer disposed between the pinned layer and the free layer; an antiferromagnetic layer disposed to fin the magnetization direction of the pinned layer and vertically spaced apart from the pinned layer to be aligned with the pinned layer; and a noble metal spacer layer disposed between the pinned layer and the antiferromagnetic layer.

A magnetic device includes a pinned layer having an in-plane magnetization direction; a free layer, having an in-plane magnetization direction, vertically spaced apart from the pinned layer to be aligned with the pinned layer; a conductive spacer layer disposed between the pinned layer and the free layer; an antiferromagnetic layer disposed to fin the magnetization direction of the pinned layer and vertically spaced apart from the pinned layer to be aligned with the pinned layer; and a noble metal spacer layer disposed between the pinned layer and the antiferromagnetic layer.

There are provided a method for producing a magnetic refrigeration material whose magnetic transition temperature can be adjusted with high accuracy, and a magnetic refrigeration material whose magnetic transition temperature has been adjusted with high accuracy. The magnetic refrigeration material production method of the present invention includes the steps of: preparing a first predetermined magnetic refrigeration material and a second predetermined magnetic refrigeration material which differs from the first magnetic refrigeration material; and mixing the first magnetic refrigeration material and the second magnetic refrigeration material to obtain a third magnetic refrigeration material. The content of the first magnetic refrigeration material and the content of the second magnetic refrigeration material in the third magnetic refrigeration material are determined by the magnetic transition temperatures of the first magnetic refrigeration material and the second magnetic refrigeration material and by a target magnetic transition temperature of the third magnetic refrigeration material. The magnetic refrigeration material of the present invention includes at least a first predetermined magnetic refrigeration material and a second predetermined magnetic refrigeration material which differs from the first magnetic refrigeration material. The absolute value of the difference between the magnetic transition temperature of the present magnetic refrigeration material and a target magnetic transition temperature is 0.7 K or less.

There are provided a method for producing a magnetic refrigeration material whose magnetic transition temperature can be adjusted with high accuracy, and a magnetic refrigeration material whose magnetic transition temperature has been adjusted with high accuracy. The magnetic refrigeration material production method of the present invention includes the steps of: preparing a first predetermined magnetic refrigeration material and a second predetermined magnetic refrigeration material which differs from the first magnetic refrigeration material; and mixing the first magnetic refrigeration material and the second magnetic refrigeration material to obtain a third magnetic refrigeration material. The content of the first magnetic refrigeration material and the content of the second magnetic refrigeration material in the third magnetic refrigeration material are determined by the magnetic transition temperatures of the first magnetic refrigeration material and the second magnetic refrigeration material and by a target magnetic transition temperature of the third magnetic refrigeration material. The magnetic refrigeration material of the present invention includes at least a first predetermined magnetic refrigeration material and a second predetermined magnetic refrigeration material which differs from the first magnetic refrigeration material. The absolute value of the difference between the magnetic transition temperature of the present magnetic refrigeration material and a target magnetic transition temperature is 0.7 K or less.

An inductor can be formed in a coreless electronic substrate from magnetic materials and/or fabrication processes that do not result in the magnetic materials leaching into plating and/or etching solutions/chemistries, and results in a unique inductor structure. This may be achieved by forming the inductors from magnetic ferrites. The formation of the electronic substrates may also include process sequences that prevent exposure of the magnetic ferrites to the plating and/or etching solutions/chemistries.

An inductor can be formed in a coreless electronic substrate from magnetic materials and/or fabrication processes that do not result in the magnetic materials leaching into plating and/or etching solutions/chemistries, and results in a unique inductor structure. This may be achieved by forming the inductors from magnetic ferrites. The formation of the electronic substrates may also include process sequences that prevent exposure of the magnetic ferrites to the plating and/or etching solutions/chemistries.

Implementations described herein provide systems and methods for wireless charging. In one implementation, a portable electronic device comprises a housing, a planar inductor coil, and a ferromagnetic shield. The planar inductor coil is disposed in the housing and comprises a conductive wire wound a plurality of turns about a center point and in increasing radii. The ferromagnetic shield is disposed in the housing and overlaps the planar inductor coil. The ferromagnetic shield comprises a first layer comprising a first plurality of iron-based nanocrystalline ribbons arranged in adjacent rows along a first direction and a second layer comprising a second plurality of iron-based nanocrystalline ribbons overlapping the first layer. The second plurality of iron-based nanocrystalline ribbons is arranged in adjacent rows along a second direction different from the first direction.

Implementations described herein provide systems and methods for wireless charging. In one implementation, a portable electronic device comprises a housing, a planar inductor coil, and a ferromagnetic shield. The planar inductor coil is disposed in the housing and comprises a conductive wire wound a plurality of turns about a center point and in increasing radii. The ferromagnetic shield is disposed in the housing and overlaps the planar inductor coil. The ferromagnetic shield comprises a first layer comprising a first plurality of iron-based nanocrystalline ribbons arranged in adjacent rows along a first direction and a second layer comprising a second plurality of iron-based nanocrystalline ribbons overlapping the first layer. The second plurality of iron-based nanocrystalline ribbons is arranged in adjacent rows along a second direction different from the first direction.