Magnetoresistive effect transducer.

摘要

In this sensor, the sensitive element consists of a monocristalline magnetic metallic multilayer (2) formed from a stack of layers (20) made from a magnetic material which are separated by layers (21) made from a non-magnetic material, the multilayer being produced such that the layers made from magnetic material have an antiferromagnetic type coupling and that the transition between the antiparallel ordering state and the parallel ordering state is produced over a very small magnetic field interval. …Application to magnetic recording. ……