Fabrication of magnetorestrictive sensors using self assembled nanosphere mask

Co-Cu-Co pseudo spin valves nanostructures are fabricated to investigate their magnetoresistance properties. Vibrating sample magnetometer study of the continuous reference trilayers shows that the ferromagnetic layers are coupled antiferromagnetically through spacer layer. The hysteresis loops of these layers show easy axis to be in plane. Magnetoresistance (MR) measurements were performed with the applied field parallel to the plane of the sample, at different angles with respect to the current direction.