Thermal Hall effect in a phonon-glass Ba${}_3$CuSb${}_2$O${}_9$

Kaori Sugii, Masaaki Shimozawa, Daiki Watanabe +6

A distinct thermal Hall signal is observed in a quantum spin liquid candidate Ba${}_3$CuSb${}_2$O${}_9$. The transverse thermal conduction shows a power-law temperature dependence below…