Patent ID: 7651573

Claim:
A method of manufacturing a planar ferromagnetic element, comprising: annealing an amorphous planar ferromagnetic ribbon having: a ribbon width, a ribbon thickness, and a ribbon axis extending in a longest dimension of said amorphous planar ferromagnetic ribbon, in the presence of an applied magnetic field having a strength H and orientation represented by a magnetic field vector at an angle α ranging from 30° to 89° to produce an annealed amorphous planar ferromagnetic ribbon having: a magnetization represented by a vector oblique to a plane of the amorphous planar ferromagnetic ribbon at an angle β, and an induced axis of anisotropy at said angle β, wherein: the angle α is the angle between a line across the ribbon width and perpendicular to the ribbon axis and a line parallel to the direction of the applied magnetic field, and the angle β is the angle between a line across the ribbon width and perpendicular to the ribbon axis and a line parallel to the direction of the magnetization vector; the angles α and β may differ; and the magnetic field vector and the magnetization vector are perpendicular to the ribbon axis.