Enhanced Current-Perpendicular-to-Plane Giant Magnetoresistance Effect in Half-Metallic NiMnSb Heusler Alloy Based Nano-Junctions with Multiple Ag Spacers

Well-designed magnetic heterostructures with novel materials exhibiting large magnetoresistance effect are indispensable for advanced spintronic applications. Current-perpendicular-to-plane giant magnetoresistance (CPP-GMR) heterostructure devices have been attracting great interest because of potential applications for next generation hard disk drives (HDDs) and all-metallic spin torque oscillators (STOs). Half-metallic Heusler alloys are promising materials for increasing the CPP-GMR effect due to their high spin polarization.