Thermodynamics and heat transport of quantum spin liquid candidates NaYbS${}_2$ and NaYbSe${}_2$

N. Li, M. T. Xie, Q. Huang +13

We study the ultralow-temperature thermodynamics and thermal conductivity ($\hat{I}º$) of the single-crystal rare-earth chalcogenides NaYbS${}_2$ and NaYbSe${}_2$, which have an ideal triang…