Fig. 4: Thermal conductance data at higher temperatures.
From: Absence of heat flow in ν = 0 quantum Hall ferromagnet in bilayer graphene
a–c, Excess thermal noise SI measured as a function of the source current at temperatures 80 mK (a), 300 mK (b) and 500 mK (c) for device 1 for two cases: (1) νBG1 = 4 and νBG2 = 4 (red) and (2) νBG1 = 4 and νBG2 = 0 (black). d–f, For case 2 (4-0), JQ versus ΔT plotted for 80 mK (d), 300 mK (e) and 500 mK (f). To calculate the thermal conductance, the data were fitted linearly (solid blue line) in a small ΔT range. The solid black line represents the expected electronic contribution of the thermal conductance.
