Perpendicular giant magnetoresistance composed of $[Co∕Pt]$ multilayer and $CoFe∕TbCo$ Available to Purchase

Perpendicular spin valves composed of $[Co∕Pt]$ multilayer and $CoFe∕TbCo$ bilayer were fabricated. The perpendicular giant magnetoresistance ratio of 4.8% was obtained with current-in-plane measurements. The interlayer coupling increased with increasing the net magnetization of $CoFe∕TbCo$⁠. We proposed a perpendicular pinning structure which possessed a high perpendicular coercivity (7000 Oe) but zero net moment. Consequently, the interlayer coupling between free and pinned layers can be significantly suppressed. This perpendicular pinning structure can be potentially used for high-density perpendicular magnetic random access memory cells.