Antiferromagnetic lattice
<a href="//commons.wikimedia.org/w/index.php?title=User:Evie_Aim%C3%A9e_Sophie&amp;action=edit&amp;redlink=1" class="new" title="User:Evie Aimée Sophie (page does not exist)">Evie Aimée Sophie</a>
2017-01-17
<span class="int-own-work" lang="en">Own work</span>