Method of making antiparallel (AP) pinned spin valve sensor with specular reflection of conduction electrons

摘要

A specular reflecting layer is employed only one side of an AP pinned layer since a ruthenium (Ru) spacer layer in the AP pinned layer blocks conduction electrons. On the same side of the AP pinned layer a second pinned layer may be employed. With this arrangement the specular reflection layer reflects conduction electrons for enhancing a giant magnetoresistive (GMR) effect.