<a href="https://en.wikipedia.org/wiki/Band_structure" class="extiw" title="wikipedia:Band structure">Band structure</a> diagrams for metal, etc. Inspired by Kittel's <i>Introduction to Solid State Physics</i> 7th Edition, chapter 7.
<a href="//commons.wikimedia.org/wiki/User:%D0%94.%D0%98%D0%BB%D1%8C%D0%B8%D0%BD" title="User:Д.Ильин">Д.Ильин</a>, translation
<a href="//commons.wikimedia.org/wiki/File:Band_filling_diagram.svg" title="File:Band filling diagram.svg">File:Band filling diagram.svg</a> by <a href="//commons.wikimedia.org/wiki/User:Nanite" title="User:Nanite">Nanite</a>