A route towards finding large magnetic anisotropy in nano-composites: application to a W${}_{1-x}$Re${}_x$/Fe multilayer

We suggest here a novel nano-laminate, 5[Fe]/2[W${}_x$Re${}_{1-x}$] (x=0.6-0.8), with enhanced magnetic hardness in combination with a large saturation moment. The calculated magnetic anisotropy of this material reaches values of 5.3-7.0 MJ/m${}^3$, depending on alloying conditions. We also propose a recipe in how to identify other novel magnetic materials, such as nano-laminates and multilayers, with large magnetic anisotropy in combination with a high saturation moment.