Extended Data Fig. 8: Variation of the electrostatic potential for Nb3Cl8 and Nb3SeI7 rolling along [\(\bar{1}20\)].
From: Near-100% spontaneous rolling up of polar van der Waals materials
![Extended Data Fig. 8: Variation of the electrostatic potential for Nb3Cl8 and Nb3SeI7 rolling along [
$$\bar{1}20$$
1
¯
20
].](http://media.springernature.com/full/springer-static/esm/art%3A10.1038%2Fs41563-025-02357-w/MediaObjects/41563_2025_2357_Fig13_ESM.jpg?as=webp)
a, Plane-averaged electrostatic potentials along the z-axis of Nb3Cl8 planar layers and along the radial direction of Nb3Cl8 nanoscrolls. b, Plane-averaged electrostatic potentials along the z-axis of Nb3SeI7 planar layers and along the radial direction of Nb3SeI7 nanoscrolls. P⊥, d0, and Φ represent out-of-plane polarization, thickness of a single layer, and diameter, respectively.
