Emergence of the Chern structure using Sr${}_2$RuO${}_4$ nanofilms

Hiroyoshi Nobukane, Toyoki Matsuyama, Satoshi Tanda

We discovered a fractional Chern structure in chiral superconducting Sr${}_2$RuO${}_4$ nanofilms by employing electric transport. By using Sr${}_2$RuO${}_4$ single crystals with nanoscale…