Extended Data Fig. 5: Thermal rectification in the supplementary graphite Tesla valve sample within the hydrodynamic temperature range.
From: A graphite thermal Tesla valve driven by hydrodynamic phonon transport
Temperature-dependent thermal conductivity and diodicity of graphite Tesla valve samples S1 (a) and S2 (b) in the forward (cyan triangles) and reverse (red triangles) directions. Thermal conductivity (top) and diodicity (bottom) of samples S1 (c) and S2 (d) from 20 to 60 K in linear scale.
