Research on high-Tc superconductors has generally not focused on analysis of the topological structure of electronic bands in these materials. In this article we collate and discuss several well-known experimental observables that signal that certain signatures of topology may be present. The topological signatures suggested by experiment include dimensional reduction, electronic transport determined by loop statistics, a winding number, Weyl fermions, and others. We suggest that topology, in a wider sense than band topology, may be key to the mechanism of high-Tc superconductivity.
@article{arxiv.2006.15848,
title = {Indications for Topological Physics in High-$T_c$ Materials},
author = {Vincent E. Sacksteder},
journal= {arXiv preprint arXiv:2006.15848},
year = {2020}
}