Figure 2 | Scientific Reports

Figure 2

From: In-situ twistable bilayer graphene

Figure 2

Manipulation of the twist angle. (a–c) Near-field infrared imaging of the same device at different twist angles. Δθ indicate the angle change of the hBN gear relative to its original orientation. Scale bar: 3 μm. The dashed line arrows indicate a representative direction of the hBN gear. (d) High-resolution AFM image of the bottom layer graphene. Scale bar: 1 nm. The arrows indicate the zigzag direction of the graphene lattice. (e–g) High-resolution AFM images of the top layer graphene in the colored square regions in (a–c). (h–k) The 2D Fourier transform of figures (d–g). The twist angle θ between the bottom (yellow) and the top (others) layer graphene are 3°, 14°, 16°, respectively.

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