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Note obvious less transmission channels in the armchair MSNR in [150, 200] cm−1. Bottom: the thermal conductivity (κ) obtained from thermal conductance (σ) through their relationship, κ = σL/s, with cross-sectional area s = wh. The thickness h = 6.033 Å, and the length L = 1 μm. σ is calculated by the Landauer formula.
