The document discusses two alloy compositions that can be made through co-sputtering. The first alloy is Mg-Zn-Ca with magnesium ranging from 15-85 at%, zinc from 5-55 at%, and calcium from 5-60 at%. The second alloy is Fe-Mg-Zn with magnesium from 26-84 at%, zinc from 10-61 at%, and iron from 7-55 at%.