The aim of our work (M. Fidrysiak, A Kądzielawa & J.S., arXiv: 2308.03948v.2) is to try to answer the question whether high-temperature superconductivity is possible in materials with a triangular lattice, under conditions of quite strong atomic disorder of the "bond disorder" type. Such a sublattice occurs, for example, in copper-doped apatite, but our approach is general for triangular lattices in two dimensions. It turns out that superconductivity would be possible for strong exchange antiferromagnetic interactions with interaction energy J of the order of the kinetic energy t of individual electrons (J~|t|). In cuprates we deal with J~0.3|t|. So is this possible? Such high-temperature superconductivity would also have a non-trivial topology.

Link to lecture video