Pseudospin heat conductivity in the $J_{\mathrm{eff}}=1/2$ antiferromagnet Sr${}_2$IrO${}_4$

Frank Steckel, Akiyo Matsumoto, Tomohiro Takayama +3

We report the in-plane and out-of-plane heat conductivity of the antiferromagnetic spin-orbit induced Mott insulator Sr${}_2$IrO${}_4$ with $J_{\mathrm{eff}}=1/2$. Our data reveal clea…