Controlling the magnetic reversal mechanism of exchange biased MnxOy/Ni80Fe20 bilayers through O+ implantation

The magnetic interfacial properties of an exchange biased nanocrystalline Ni80Fe20/α-Fe2O3 bilayer studied by polarized neutron reflectometry and Monte Carlo simulation

“…In recent years, ion-beam engineering has proven a highly efficient method for inducing nanometer-precise chemical and magnetic modifications in a wide class of materials. [2][3][4][5][6][7][8][9] Magnetic multilayers often employ the phenomenon of exchange bias by utilizing the competing magnetic interactions between neighboring ferromagnetic (FM) and antiferromagnetic (AF) nanocrystalline layers. An exchange biased state is induced when the magnetization of the FM layer becomes pinned through magnetic interactions at the chemical interface to the AF layer, if the temperature of the system is cooled below the transition temperature of the AF component.…”