Effects of oxygen concentration in Co/CoO exchange-coupled spin valves

Abstract The properties of Co/CoOx exchange-coupled spin valves are explored at temperatures to 5 K. The spin valve structure is: 100 A CoOx/30 A Co/30 A Cu/10 A Co/50 A NiFe/50 A Ti. Our discovery is the considerable differences between the properties of the spin valves for which the CoOx layer is prepared in different O2 concentrations.