Patent ID: 8048686
Filing Date: 2011-11-01
Classification: B82Y,G01R,Y10T

Abstract:
1. Method for producing a device comprising magnetic blocks resting on a substrate ( 100 ) and which are magnetized in different directions, said method comprising: a) a step of forming, in a stack of one or more layers of antiferromagnetic material and one or more layers of ferromagnetic material resting on a substrate, at least one first block and at least one second block, said blocks being separate, the first block and the second block being longilineal and extending respectively in a first main direction and in a second main direction, the first and the second main direction forming between them a first non-zero angle α, b) a step of annealing said blocks at a temperature greater than the ordering temperature or than the blocking temperature or than the Néel temperature of said antiferromagnetic material, this annealing step additionally comprising, during the annealing, the application of a magnetic field oriented in a direction that forms a second non-zero angle θ with said first and second main directions, and of an intensity that is varied during the annealing, so that during the application of the magnetic field: