PROJECT TITLE :

Magnetic Properties and Interfacial Anisotropies of Pt/Co/AlOx Perpendicularly Magnetized Thin Films

ABSTRACT:

The thin films of Pt/Co/AlOx, showing perpendicular magnetic anisotropy, were grown by magnetron sputtering with AlOx formed by the oxidation of thin Al layers using an oxygen atom source. Films were studied as a perform of Pt thickness and Al oxidation, and films that showed full remanence and sharp switching coercivity were achieved. In order to forestall further oxidation of the interface in ambient conditions, we have a tendency to use a double Al growth and oxidation method. The magnetooptical Kerr result and vibrating sample magnetometry were used to analyze these films. We notice an effective perpendicular anisotropy of erg/cm3, with the majority of the perpendicular anisotropy coming from the Pt/Co interface. From the sweep rate dependence on the coercivity, we have a tendency to can extract an activation volume of four.three cm3, almost like alternative Co-primarily based perpendicular systems.