Control of magnetic properties and structure in copper-304 stainless steel multilayer films

We have studied magnetic properties of as-deposited Cu-304SS multilayer films grown by magnetron sputtering as a function of multilayer period. We demonstrate by magnetization measurement and Mossbauer spectroscopy that by varying the period one may achieve the growth of metastable ferromagnetic BCC phase or stable nonmagnetic FCC phase, The mixture of these two is also possible, which is characterized by weak ferromagnetic behavior.