Single Sublayer Reconstruction in Substrate-Supported WS<sub>2</sub> Twisted Bilayers
Marginally twisted WS<sub>2</sub> bilayers undergo lattice reconstructions, but it is unclear if the distortion is equally distributed or confined to specific sublayers. Here, we use <i>in situ</i> combined noncontact atomic force microscopy with scanning tunneling spectroscopy to tune the probing depth to extract electronic and atomic lattice information for each sublayer separately. We find a lattice reconstruction unexpectedly confined to the WS<sub>2</sub> layer in contact with graphite only, governed by transition metal dichalcogenide-substrate interactions, leading to a peculiar type of a ferroelectric domain wall.
Authors
- Iuliana Radu (ORCID: https://orcid.org/0000-0002-7230-7218)
- Ph. Ebert (ORCID: https://orcid.org/0000-0002-2022-2378)
- Hung-Chang Hsu
- Rafal E. Dunin–Borkowski (ORCID: https://orcid.org/0000-0001-8082-0647)
- Y.-H. Lee
- Ya‐Ping Chiu (ORCID: https://orcid.org/0000-0001-7065-4411)
- M. Schnedler (ORCID: https://orcid.org/0000-0001-7904-8725)
- Mingyang Li (ORCID: https://orcid.org/0000-0003-1507-1509)
- Haoyu Chen (ORCID: https://orcid.org/0000-0003-0676-4610)
Institutions
- National Taiwan University (TW)
- Forschungszentrum Jülich (DE)
- Ernst Ruska Centre (DE)
- Institute of Physics, Academia Sinica (TW)
- Taiwan Semiconductor Manufacturing Company (Taiwan) (TW)
- Institute of Atomic and Molecular Sciences, Academia Sinica (TW)
Publication Details
- Journal
- ACS Nano
- Published
- 2025-07-13
- DOI
- https://doi.org/10.1021/acsnano.5c01308
- Citations
- 1
- Primary Topic
- 2D Materials and Applications
- Type
- article
- Field-Weighted Citation Impact
- 0.52
Funders
- National Taiwan University
- National Science and Technology Council
- Center of Atomic Initiative for New Materials, National Taiwan University