Dual element magnetoresistance sensing heads and read / write magnetic heads with sensing sense heads

摘要

The read / write head of the present invention is composed of an induction head 36 superimposed with a dual element magnetoresistive sensing head 38. In one embodiment of the present invention, the structure of the magnetoresistive sensing head 38 Preferably, the antiferromagnetic impulses 14 and 16 are composed of two spaced apart magnetoresistive collisions 10 and 12 on which antiferromagnetic collisions 14 and 16 of iron manganese are deposited. The magnetic signals recorded by biasing the magnetoresistive layers 10 and 12 perpendicularly to the surface of the magnetic medium act differently to the fields 10 and 12 and the hippo, and the output signals are differentially branched. Is amplified and the signal-to-noise ratio is improved.