Fig. 3: Thermal conductivity and specific heat of GdZnPO with magnetic field along the c axis.
From: Itinerant and topological excitations in a honeycomb spiral spin liquid candidate
a Thermal conductivity κxx of sample TC5 at various fields, with fits κxx ~ κ0 + κ1T + KpT3 below 1 K (colored lines). Fitted parameters κ0 and κ1 are shown in e (solid symbols). The vertical arrow marks the upturn onset in zero-field κxx as T decreases. b κxx/T vs T2 for selected data. The gray and black lines represent the κ0/T and κ1 + KpT2 components, respectively, of the 0.2 T fit. c, d Field dependence of κxx/T and magnetic specific heat Cm/T at selected temperatures (error bars: 1σ s.e.). e, f Field dependence of fitted parameters κ0, κ1, C0, and C1. In (e), open symbols show the fitted values of κ0 and κ1 from linear fits κxx ~ κ0 + κ1T at T ≤ 0.14 K, where the KpT3 term (≤ 0.018 WK−1 m−1) is negligible. Dashed lines in (c−f) mark the crossover field μ0Hc ~ 12 T.
