<p><span lang="IT">The so-called &ldquo;rare-earth crisis&rdquo; in the 2010&rsquo;s re-ignited investigation in the search for new concepts </span><span lang="EN-US">in permanent magnetic materials design. &nbsp;The key factor is that advanced fabrication and analysis methods with precision down to the nanoscale that combine</span><span lang="IT"> composition and crystal structure control and optimization of the microstructure to manipulate the intrinsic magnetic properties of magnets (magnetization, exchange and magnetocrystalline anisotropy) or to enhance extrinsic magnetic features (remanence and coercivity) are now accessible. Thus, current&nbsp;strategies involve&nbsp;nanostructuring and control of crystal structure and composition to the nanoscale through metallurgical n</span><span lang="EN-US">on-equilibrium processing techniques&nbsp;</span><span lang="IT">convey optimization of the magnetic properties or advantageous modification of the fabrication process of new magnets.</span></p>