Heat transport in RbFe2As2 single crystal: evidence for nodal superconducting gap

Z. Zhang, A. F. Wang, X. C. Hong +7

The in-plane thermal conductivity of iron-based superconductor RbFe${}_2$As${}_2$ single crystal ($T_c\approx$ 2.1 K) was measured down to 100 mK. In zero field, the observation of a…