Patent ID: 7033849

Claim:
A method of one of adjusting and locally modifying a resulting direction of magnetization in a layer of a magnetoresistive layer system having a ferromagnetic layer and an adjacent antiferromagnetic layer, the ferromagnetic layer having a resulting magnetization with an associated resulting direction of magnetization that is one of induced and influenceable by the adjacent antiferromagnetic layer, the method comprising: heating at least the antiferromagnetic layer by a heated stamp over a threshold temperature above which an influence of the antiferromagnetic layer on the resulting direction of magnetization of the adjacent ferromagnetic layer at least largely disappears; exposing at least an area of the ferromagnetic layer adjacent to the adjacent antiferromagnetic layer to an external magnetic field of a predefined direction; subsequently cooling the antiferromagnetic layer again below the threshold temperature; and providing a plurality of magnetoresistive layer systems on a common substrate, the plurality of magnetoresistive layer systems are designed as locally bounded areas to have insulated surfaces having a size of 5 μm 2 to 500 μm 2 , and one of strips having a width of 0.5 μm to 100 μm and a length of 50 μm to 120 mm and a serpentine-shaped structures having the strips, wherein the plurality of magnetoresistive layer systems is heated over the threshold temperature using the stamp one of at least partly consecutively and simultaneously.