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Epitaxial growth and characterization of SnSe phases on Au(111)
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SYSNO ASEP 0572879 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Epitaxial growth and characterization of SnSe phases on Au(111) Author(s) Frezza, Federico (FZU-D) ORCID
Sánchez Grande, Ana (FZU-D) ORCID
Ondráček, Martin (FZU-D) RID, ORCID
Vondráček, Martin (FZU-D) RID, ORCID
Chen, Qifan (FZU-D)
Stetsovych, Oleksandr (FZU-D) ORCID
Villalobos-Vilda, V. (ES)
Tosi, E. (ES)
Palomares, F. J. (ES)
Lopez, M. F. (ES)
Sánchez-Sánchez, C. (ES)
Ernst, Karl-Heinz (FZU-D) ORCID
Martín-Gago, J.A. (ES)
Honolka, Jan (FZU-D) RID, ORCID
Jelínek, Pavel (FZU-D) RID, ORCIDNumber of authors 15 Article number 335001 Source Title Journal of Physics-Condensed Matter. - : Institute of Physics Publishing - ISSN 0953-8984
Roč. 35, č. 33 (2023)Number of pages 9 s. Language eng - English Country US - United States Keywords 2D materials ; group IV-VI semiconductors ; metal chalcogenides ; scanning probe microscopies ; XPS/XPD ; ARPES Subject RIV BM - Solid Matter Physics ; Magnetism OECD category Condensed matter physics (including formerly solid state physics, supercond.) R&D Projects GA22-04408S GA ČR - Czech Science Foundation (CSF) GF21-17194L GA ČR - Czech Science Foundation (CSF) Research Infrastructure e-INFRA CZ II - 90254 - CESNET, zájmové sdružení právnických osob Method of publishing Open access Institutional support FZU-D - RVO:68378271 UT WOS 000994000700001 EID SCOPUS 85160023480 DOI 10.1088/1361-648X/acd49e Annotation Different phases of the same IV-VI semiconductor can present completely different electronic and optical properties. In almost defect-free two-dimensional structures of SnSe epitaxially grown on a Au(111) substrate, we describe a coverage-dependent transition from a metallic β-SnSe to a semiconducting α-SnSe phase. The combination of scanning tunneling microscopy/spectroscopy, non-contact atomic force microscopy, x-ray photoelectron spectroscopy/diffraction and angle-resolved photoemission spectroscopy, complemented by density functional theory, provides a comprehensive study of the geometric and electronic structure of both phases. Our work demonstrates the possibility to grow two distinct SnSe phases on Au(111) with high quality and on a large scale. Tight interaction with the substrate allows stabilization of the previously experimentally unreported β-SnSe, while the ultra-thin films of orthorhombic α-SnSe are structurally and electronically equivalent to bulk SnSe. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2024 Electronic address https://hdl.handle.net/11104/0345256
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