Structural and Magnetic Features of Oxygen Inserted [Co-O/Pt](n) Multi-Layer Matrix for Spin Transfer Torque Memory Applications

Abstract

We describe the influence of inserted oxygen atoms on the structural and magnetic properties of a [Co/Pt](n) multi-layer matrix. The correlation of magnetic properties with oxygen gas flow rate was studied as an alternative perpendicular medium in spin transfer torque magnetic random access memory applications. Experimental analysis suggests that the addition of a small amount of oxygen atoms into the [Co/Pt](n) multi-layer matrix leads to a high coercivity and proper magnetization performance, together with high thermal stability. Finally, the nature of the improved perpendicular medium behaviors is also discussed.