A soft magnetic alloy has a main component of Fe. The soft magnetic alloy contains P. A Fe-rich phase and a Fe-poor phase are contained. An average concentration of P in the Fe-poor phase is 1.5 times or larger than an average concentration of P in the soft magnetic alloy by number of atoms.

Provided is an inductor structure. In embodiments of the invention, the inductor structure includes a first laminated stack. The first laminated stack includes layers of an insulating material alternating with layers of a first magnetic material. The inductor structure includes a laminated second stack formed on the first laminated stack. The second laminated stack includes layers of the insulating material alternating with layers of a second magnetic material. The second magnetic material has a greater permeability than does the first magnetic material.

A method for synthesis of high anisotropy L1.sub.0 FeNi (tetrataenite) thin films is provided that combines physical vapor deposition via atomic layer sputtering and rapid thermal annealing with extreme heating and cooling speeds. The methods can induce L1.sub.0-ordering in FeNi thin films. The process uses a base composite film of a support substrate, a seed layer, a multilayer thin film of FeNi with alternating single atomic layers of Fe and Ni that mimics the atomic plane of the final L1.sub.0 FeNi alloy, and a capping layer. The Fe and Ni bilayers are grown on top of a Si substrate with a thermally oxidized SiO.sub.2 seed layer to mechanically strain the sample during rapid thermal annealing.

A multi-shelled shielded room is provided that has an outer shell with a first soft magnetic alloy having an initial permeability ?.sub.i1 and a maximum permeability ?.sub.max1 and an inner shell with a second soft magnetic alloy having an initial permeability ?.sub.i2 and a maximum permeability ?.sub.max2. The outer shell encases the inner shell and ?.sub.max1>?.sub.max2 and ?.sub.i2>?.sub.i1.

A method for producing a grain-oriented electrical steel sheet includes: heating a steel slab containing a specific composition; subsequently performing hot rolling; performing hot-band annealing as necessary; performing cold rolling either once or two or more times with intermediate annealing between each rolling to obtain a cold-rolled sheet having a final sheet thickness; performing primary recrystallization annealing which also serves as decarburization annealing; and performing finishing annealing. In the method for producing a grain-oriented electrical steel sheet, the heating temperature for the slab is 1300? C. or higher. In the rough rolling of the hot rolling, one of rolling passes is performed in the temperature range of 1200? C. or higher, and subsequently, a next rolling pass is performed in an opposite direction after a time interval of 5 seconds or longer, with a total rolling reduction of the rough rolling achieved 75% or higher.

Provided is an inductor structure. In embodiments of the invention, the inductor structure includes a first laminated stack. The first laminated stack includes layers of an insulating material alternating with layers of a first magnetic material. The inductor structure includes a laminated second stack formed on the first laminated stack. The second laminated stack includes layers of the insulating material alternating with layers of a second magnetic material. The second magnetic material has a greater permeability than does the first magnetic material.

Provided is an inductor structure. In embodiments of the invention, the inductor structure includes a first laminated stack. The first laminated stack includes layers of an insulating material alternating with layers of a first magnetic material. The inductor structure includes a laminated second stack formed on the first laminated stack. The second laminated stack includes layers of the insulating material alternating with layers of a second magnetic material. The second magnetic material has a greater permeability than does the first magnetic material.

A soft magnetic alloy has a main component of Fe. The soft magnetic alloy contains P. A Fe-rich phase and a Fe-poor phase are contained. An average concentration of P in the Fe-poor phase is 1.5 times or larger than an average concentration of P in the soft magnetic alloy by number of atoms.

A laminated coil component includes a magnetic body part made of a NiZn-based ferrite material and a coil conductor containing Cu as a main component, which is wound into a coil shape, and the coil conductor is embedded in the magnetic body part to form a component base. The component base is divided into a first region near the coil conductor and a second region other than the first region. The grain size ratio of the average crystal grain size of the magnetic body part in the first region to the average crystal grain size of the magnetic body part in the second region is 0.85 or less. The molar content of CuO in the ferrite raw material is set to 6 mol % or less, and firing is performed in a reducing atmosphere in which the oxygen partial pressure is an equilibrium oxygen partial pressure of CuCu.sub.2O or less.

An electrical steel sheet includes: a specific chemical composition; a crystal grain diameter of 20 m to 300 m; and a texture satisfying Expression 1, Expression 2, and Expression 3 when the accumulation degree of the (001)[100] orientation is represented as I.sub.Cube and the accumulation degree of the (011)[100] orientation is represented as I.sub.Goss.

I.sub.Goss+I.sub.Cube10.5Expression 1

I.sub.Goss/I.sub.Cube0.50Expression 2

I.sub.Cube2.5Expression 3