Fig. 2: Thermoelectric transport in twisted bilayer graphene. | Nature Communications

Fig. 2: Thermoelectric transport in twisted bilayer graphene.

From: Breakdown of semiclassical description of thermoelectricity in near-magic angle twisted bilayer graphene

Fig. 2: Thermoelectric transport in twisted bilayer graphene.The alternative text for this image may have been generated using AI.

a The cross-sectional view of the device, showing the constituent layers, electrical contacts, and the gate assembly. b In-plane heating and measurement schematic for thermovoltage V2ω in the tBLG region. Density dependence of \({V}_{2\omega }/{I}_{\omega }^{2}\) (in the units of VA−2 × 106) measured at 5 K for (c) θ ≈ 1.01∘, d 1.24∘, and at 3 K for (e) 1. 6∘ device. The different curves in each panel represent the \({V}_{2\omega }/{I}_{\omega }^{2}\) measured at different Iω. The bottom graphs in each panel show the numerically calculated α = (1/R)dR/dn (in the units of m2) for comparison.

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