Electronic mean free path of the cuprate superconductor Bi${}_2$Sr${}_2$CaCu${}_2$O${}_{8+\delta }$ from thermal Hall conductivity

Emma Campillo, Manel Mezidi, Lu Chen +6

We use thermal transport to access the electronic mean free path of $d$-wave quasiparticles in one of the most widely studied cuprate superconductors, Bi${}_2$Sr${}_2$CaCu${}_2$O${}_{8+\delta }$…