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. 
Sumanta Bhandary, Oscar Gr{\aa}n\"as, Laszlo Szunyogh, Biplab Sanyal,   Lars Nordstr\"om, and Olle Eriksson
cond-mat.mtrl-sci