Patent ID: 8638090
Filing Date: 2014-01-28
Classification: B82Y,G01R,H01L,Y10T

Abstract:
1. A method for producing a magnetoresistive system, the method comprising: forming first and second structures of the magnetoresistive system; heating the first and second structures; applying a magnetic field in a reference direction to the first and second structures; cooling the first and second structures to fix a reference magnetization in the first and second structures in the reference direction; heating the first and second structures near or above a blocking temperature, whereby the shape anisotropy of the first structure forces the reference magnetization in the first structure to rotate into a first new orientation and the shape anisotropy of the second structure forces the reference magnetization in the second structure to rotate into a second new orientation whereby the reference magnetization in the first structure and the reference magnetization in the second structure rotate in opposite directions; and pinning the rotated reference magnetizations of the first and second structures in the respective new orientation.