Extended Data Fig. 4: Rolling orientation of the 1D M₃X₈ and M₃QX₇ nanoscrolls prepared from a different batch of samples.

a-d, TEM images and SAED patterns at two separate region-i and region-ii along the axis of Nb₃Cl₈ and Nb₃SeI₇ nanoscrolls, showing the rolling orientation along [100] direction. e-h, TEM images and FFT patterns at two separate region-i and region-ii along the axis of Nb₃Cl₈ and Nb₃SeI₇ nanoscrolls, showing the rolling orientation along [\(\bar{1}20\)] direction. The model diagrams in (b), (d), (f), and (h) correspond to the cross-sectional schematics of the nanoscrolls in (a), (c), (e), and (g), respectively. The ‘⊗’ denotes the direction perpendicular to the page and inward.