# Moiré superlattices of antimonene on a Bi(111) substrate with van Hove singularity and Rashba-type spin polarization https://mdr.nims.go.jp/datasets/3e7e4c26-a6a8-48c2-9cf2-eb4adf52a4e1 ## File - [Nakamura_et_al-2024-Communications_Materials.pdf](https://mdr.nims.go.jp/filesets/5f122a73-ccff-4ebd-ba80-deb88176a1fe/download) ([Detail](https://mdr.nims.go.jp/filesets/5f122a73-ccff-4ebd-ba80-deb88176a1fe.md)) ## Id 3e7e4c26-a6a8-48c2-9cf2-eb4adf52a4e1 ## Local identifier ## Visibility open_to_public ## State published ## Created at 2024-08-26T09:23:53.065249Z ## Updated at 2024-08-28T23:30:22.509643Z ## Published at 2024-08-28T23:30:22.996612Z ## Doi ## First published url https://doi.org/10.1038/s43246-024-00615-z ## Date published 2024-08-26 ## Recorded date published ## Resource type journal_article ## Manuscript type vor ## Collection ## Title - title: Moiré superlattices of antimonene on a Bi(111) substrate with van Hove singularity and Rashba-type spin polarization title_type: original lang: en ## Description - description: Moiré superlattices consisting of two-dimensional materials have attracted immense attention because of emergent phenomena such as flat band-induced Mott insulating states and unconventional superconductivity. However, the effects of spin-orbit coupling on these materials have not yet been fully explored. Here, we show that single- and double-bilayer antimony honeycomb lattices, referred to as antimonene, form moiré superlattices on a Bi(111) substrate due to lattice mismatch. Scanning tunnelling microscopy (STM) measurements reveal the presence of spectral peaks near the Fermi level, which are spatially modulated with the moiré period. Angle-resolved photoemission spectroscopy (ARPES) combined with density functional theory calculations clarify the surface band structure with saddle points near the Fermi level, which allows us to attribute the observed STM spectral peaks to the van Hove singularity. Moreover, spin-resolved ARPES measurements reveal that the observed surface states are Rashba-type spin-polarized. The present work has significant implications in that Fermi surface instability and symmetry breaking may emerge at low temperatures, where the spin degree of freedom and electron correlation also play important roles. description_type: abstract lang: eng ## Creator - name: Tomonori Nakamura role: author organization: National Institute for Materials Science department: International Center for Materials Nanoarchitectonics/Nano-System Field/Surface Quantum Phase Materials Group ror: https://ror.org/026v1ze26 - name: Yitao Chen role: author organization: Department of Condensed Matter Physics, Graduate School of Science, Hokkaido University - name: Ryohei Nemoto role: author organization: National Institute for Materials Science department: Research Center for Materials Nanoarchitectonics (MANA)/Quantum Materials Field/Surface Quantum Phase Materials Group ror: https://ror.org/026v1ze26 - name: Wenxuan Qian role: author orcid: https://orcid.org/0009-0003-2984-3108 organization: National Institute for Materials Science department: Research Center for Materials Nanoarchitectonics (MANA)/Quantum Materials Field/Surface Quantum Phase Materials Group ror: https://ror.org/026v1ze26 - name: Yuto Fukushima role: author organization: Institute for Solid State Physics, The University of Tokyo - name: Kaishu Kawaguchi role: author organization: Institute for Solid State Physics, The University of Tokyo - name: Ryo Mori role: author organization: Institute for Solid State Physics, The University of Tokyo - name: Takeshi Kondo role: author organization: Institute for Solid State Physics, The University of Tokyo - name: Youhei Yamaji role: author orcid: https://orcid.org/0000-0002-4055-8792 organization: National Institute for Materials Science department: Research Center for Materials Nanoarchitectonics (MANA)/Quantum Materials Field/Quantum Materials Modeling Group ror: https://ror.org/026v1ze26 - name: Shunsuke Tsuda role: author orcid: https://orcid.org/0000-0001-6209-8048 organization: National Institute for Materials Science department: Center for Basic Research on Materials/Advanced Materials Characterization Field/Photoemission Spectroscopy Group ror: https://ror.org/026v1ze26 - name: Koichiro Yaji role: author orcid: https://orcid.org/0000-0002-0721-1316 organization: National Institute for Materials Science department: Center for Basic Research on Materials/Advanced Materials Characterization Field/Photoemission Spectroscopy Group ror: https://ror.org/026v1ze26 - name: Takashi Uchihashi role: author orcid: https://orcid.org/0000-0003-0811-5665 organization: National Institute for Materials Science department: Research Center for Materials Nanoarchitectonics (MANA)/Quantum Materials Field/Surface Quantum Phase Materials Group ror: https://ror.org/026v1ze26 ## Contact agent ## Publisher organization: Springer Nature ## Managing organization ## Keyword - subject: moiré superlattice schema: not_defined - subject: antimonene schema: not_defined - subject: Bi(111) surface schema: not_defined - subject: van Hove singularity schema: not_defined - subject: spin-orbit coupling schema: not_defined - subject: atomic layer schema: not_defined - subject: Rashba-type spin polarization schema: not_defined ## Rights - identifier: https://creativecommons.org/licenses/by/4.0/ ## Other identifier(s) ## Data origin - data_origin_type: other ## Embargo ## Journal - title: Communications Materials issn: '26624443' volume: '5' start_page: 1 end_page: 9 article_number: '167' ## Conference ## Related item ## Funding - identifier: 20H05621 funder_name: JSPS - identifier: 22H01961 funder_name: JSPS - identifier: 20K15133 funder_name: JSPS - identifier: 22H01183 funder_name: JSPS - identifier: 23H03818 funder_name: JSPS - identifier: 23H04524 funder_name: JSPS - funder_name: MEXT description: "The World Premier International Research Center (WPI) Initiative on Materials\r\nNanoarchitectonics" - identifier: JPJ004596 funder_name: ATLA description: The Innovative Science and Technology Initiative for Security ## Instrument ## Instrument operator ## Instrument managing organization ## Measurement method ## Specimen ## Chemical composition ## Structure for specimen ## Structural feature for specimen ## Specific property for specimen ## Process for specimen treatment ## Computational method ## Energy level/transition state ## Software ## Custom property ## Fileset - id: 5f122a73-ccff-4ebd-ba80-deb88176a1fe filename: Nakamura_et_al-2024-Communications_Materials.pdf content_type: application/pdf size: 3969635 md5: 9ba1d5c5725cf44fa770eb09e6131e33 ## Thumbnail fileset_id: 5f122a73-ccff-4ebd-ba80-deb88176a1fe filename: Nakamura_et_al-2024-Communications_Materials.pdf