Patent ID: 9076467
Filing Date: 2015-07-07
Classification: G11B,Y10T

Abstract:
1. A magnetoresistive sensor capable of sensing external magnetic fields when a sense current is applied perpendicular to layer planes in the sensor, the sensor comprising: a substrate; a multilayer reference layer on the substrate, the multilayer reference layer comprising a non-Heusler alloy ferromagnetic sublayer, a Heusler alloy layer having a fixed in-plane magnetization direction, and a crystalline non-Heusler CoFeX alloy layer between the non-Heusler alloy sublayer and the Heusler alloy layer, said CoFeX alloy having a composition (Co a free layer having an in-plane magnetization direction substantially free to rotate in the presence of an external magnetic field; and an electrically conductive spacer layer between the free layer and the multilayer reference layer.