Fig. 2: Electrical resistivity and heat capacity data.

a Temperature-dependent resistivity in log scale to show the low-temperature resistivity saturation, the red solid line is the fitted data using the activation energy model. b Heat capacity of BaPt4Se6 from 2 K to 200 K where no clear anomalies or jumps are observed, and the inset is the low-temperature heat capacity and first derivative (in red) data from 2 K to 10 K.