Magnetic spin resistance sensor for the magnetic read head of a computer hard drive has ferromagnetic deposited layers separated by an intermediate layer

摘要

Magnetic spin resistance sensor has a deposited layer (4) comprises to ferromagnetic deposited layers (4a, 4c) separated by an intermediate layer that causes a super exchange effect between the two deposited layers in an anti-parallel manner. The moment of the first magnetic layer (4a) is greater than that of the second layer (4b). The intermediate layer is of ruthenium. Independent claims are made for a manufacturing procedure for a magnetic spin resistance sensor, a hard drive magnetic read head and a computer hard drive.