Thermal Hall Conductivity as a Probe of Gap Structure in Multi-band Superconductors: The Case of $\mathrm{B}{\mathrm{a}}_{1-\mathrm{x}}{\mathrm{K}}_{\mathrm{x}}\mathrm{F}{\mathrm{e}}_2\mathrm{A}{\mathrm{s}}_2$

J. G. Checkelsky, R. Thomale, Lu Li +4

The sign and profile of the thermal Hall conductivity ${\kappa }_{xy}$ gives important insights into the gap structure of multi-band superconductors. With this perspective, we have investi…