Magnetic Properties of Co/Cu/Py Antidot Films With Different Pore Diameters
Juliano C. Denardin, Erick Burgos, Roberto Lavin, Smiljan Vojkovic, Joel Briones, Marcos Flores
IEEE transactions on magnetics
The magnetic properties of ordered nanoscale Co/Cu/Py multilayer antidot films with different pore sizes prepared on top of nanoporous alumina membranes are presented. By using Co and Py films separated by a Cu thin layer, and tuning the pore diameters of the NAMs we were able to play with the coercivity of the films and observe stepped magnetization curves, as a consequence of the different coercivities of the Co and Py films. The magnetic properties of the multilayer antidots have been
... d and compared with results obtained for antidots of Cu/Py. The magnetization reversal process that occurs in each individual layer and in the multilayer was studied by means of micromagnetic simulations.