Thermal Conductivity across the Phase Diagram of Cuprates: Low-Energy Quasiparticles and Doping Dependence of the Superconducting Gap

Mike Sutherland, D. G. Hawthorn, R. W. Hill +15

Heat transport in the cuprate superconductors YBa${}_2$Cu${}_3$O${}_y$ and La${}_{2-x}$Sr${}_x$CuO${}_4$ was measured at low temperatures as a function of doping. A residual linear term kapp…