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Strain solitons have been widely observed in van der Waals materials and their heterostructures. They can manifest as one-dimensional (1D) wires and quasi-two-dimensional (2D) networks. However, their coexistence within the same region has rarely been observed, and their interplay remains unexplored. Here, employing lateral piezoresponse force microscopy, we show that 1D linear solitons and 2D moiré solitons appear simultaneously and interact in twisted multilayer graphene. In twisted monolayer–bilayer graphene, when a linear soliton intersects with moiré solitons, the polarization reverses across the intersections, splitting a polar vortex into two vortices. Interestingly, when a linear soliton is parallel to a moiré soliton, they can annihilate each other in certain case, resulting in the unification of polar vortices. In twisted monolayer–trilayer graphene, linear solitons from different interfaces can be resolved. Our results provide new insights for the interplay between different solitons and pave a new way for engineering moiré physics.

権利情報:

• In Copyright
  

  This document is the Accepted Manuscript version of a Published Article that appeared in final form in Nano Letters, copyright © 2025 American Chemical Society. To access the final published article see https://doi.org/10.1021/acs.nanolett.4c05666.

キーワード: Strain soliton, Twisted multilayer graphene, Moiré superlattice

刊行年月日: 2025-01-29

出版者: American Chemical Society (ACS)

掲載誌:

• Nano Letters (ISSN: 15306984) vol. 25 issue. 4 p. 1584-1592

研究助成金:

原稿種別: 著者最終稿 (Accepted manuscript)

MDR DOI:

公開URL: https://doi.org/10.1021/acs.nanolett.4c05666

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更新時刻: 2026-07-06 13:54:35 +0900

MDRでの公開時刻: 2026-07-06 16:27:58 +0900