Magnetoresistance effect devices for attaining magnetically stability and for reducing a switching magnetic field. One of the ferromagnetic layers of the magnetoresistance effect device has a plane shape in which a width of an end portions is wider than a center portion sandwiched by two end portions....http://www.google.com.au/patents/US20020130339?utm_source=gb-gplus-sharePatent US20020130339 - Magnetoresistance effect device, method of manufacturing the same, magnetic memory apparatus, personal digital assistance, and magnetic reproducing head, and magnetic information reproducing apparatus
