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| Format: | Preprint |
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2025
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| Online-Zugang: | https://arxiv.org/abs/2507.12788 |
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| _version_ | 1866908824149950464 |
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| author | Zhang, Ziyong Chen, Xiaobin Nakagawa, Takeshi |
| author_facet | Zhang, Ziyong Chen, Xiaobin Nakagawa, Takeshi |
| contents | Honeycomb bismuthene structures on Ag(111) were investigated using low-energy electron diffraction (LEED) and density functional theory. LEED I(V) analysis revealed that 0.5 monolayer (ML) of Bi forms an ultraflat honeycomb lattice with negligible buckling at ~120 K, which transforms into other structures upon warming to room temperature. A similar flat bismuthene structure also forms in Mn/Bi/Ag(111), which remains stable even at room temperature. Mn deposition on $(p\times \sqrt{3})$-rect Bi/Ag(111) induces Bi surface segregation, as confirmed by X-ray photoelectron spectroscopy, resulting in a p$(2\times2)$ honeycomb bismuthene. The detailed structural investigation provides fundamental insights into the characterization of two-dimensional topological properties of bismuthene grown on Ag(111). |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2507_12788 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Structure determination of flat honeycomb Bi grown on Ag(111) Zhang, Ziyong Chen, Xiaobin Nakagawa, Takeshi Materials Science Honeycomb bismuthene structures on Ag(111) were investigated using low-energy electron diffraction (LEED) and density functional theory. LEED I(V) analysis revealed that 0.5 monolayer (ML) of Bi forms an ultraflat honeycomb lattice with negligible buckling at ~120 K, which transforms into other structures upon warming to room temperature. A similar flat bismuthene structure also forms in Mn/Bi/Ag(111), which remains stable even at room temperature. Mn deposition on $(p\times \sqrt{3})$-rect Bi/Ag(111) induces Bi surface segregation, as confirmed by X-ray photoelectron spectroscopy, resulting in a p$(2\times2)$ honeycomb bismuthene. The detailed structural investigation provides fundamental insights into the characterization of two-dimensional topological properties of bismuthene grown on Ag(111). |
| title | Structure determination of flat honeycomb Bi grown on Ag(111) |
| topic | Materials Science |
| url | https://arxiv.org/abs/2507.12788 |