Silva, Caio C., Dombrowski, Daniela, Atodiresei, Nicolae, Jolie, Wouter, zum Hagen, Ferdinand Farwick, Cai, Jiaqi, Ryan, Paul T. P., Thakur, Pardeep K., Caciuc, Vasile, Blugel, Stefan, Duncan, David A., Michely, Thomas ORCID: 0000-0003-1657-1847, Lee, Tien-Lin and Busse, Carsten ORCID: 0000-0001-5522-0578 (2022). Spatial variation of geometry, binding, and electronic properties in the moire superstructure of MoS2 on Au(111). 2D Mater., 9 (2). BRISTOL: IOP Publishing Ltd. ISSN 2053-1583

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Abstract

The lattice mismatch between a monolayer of MoS2 and its Au(111) substrate induces a moire superstructure. The local variation of the registry between sulfur and gold atoms at the interface leads to a periodic pattern of strongly and weakly interacting regions. In consequence, also the electronic bands show a spatial variation. We use scanning tunneling microscopy and spectroscopy (STM/STS), x-ray photoelectron spectroscopy (XPS) and x-ray standing wave (XSW) for a determination of the geometric and electronic structure. The experimental results are corroborated by density functional theory. We obtain the geometric structure of the supercell with high precision, identify the fraction of interfacial atoms that are strongly interacting with the substrate, and analyze the variation of the electronic structure in dependence of the location within the moire unit cell and the nature of the band.

Item Type: Journal Article
Creators:
CreatorsEmailORCIDORCID Put Code
Silva, Caio C.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Dombrowski, DanielaUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Atodiresei, NicolaeUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Jolie, WouterUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
zum Hagen, Ferdinand FarwickUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Cai, JiaqiUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Ryan, Paul T. P.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Thakur, Pardeep K.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Caciuc, VasileUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Blugel, StefanUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Duncan, David A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Michely, ThomasUNSPECIFIEDorcid.org/0000-0003-1657-1847UNSPECIFIED
Lee, Tien-LinUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Busse, CarstenUNSPECIFIEDorcid.org/0000-0001-5522-0578UNSPECIFIED
URN: urn:nbn:de:hbz:38-685612
DOI: 10.1088/2053-1583/ac4958
Journal or Publication Title: 2D Mater.
Volume: 9
Number: 2
Date: 2022
Publisher: IOP Publishing Ltd
Place of Publication: BRISTOL
ISSN: 2053-1583
Language: English
Faculty: Unspecified
Divisions: Unspecified
Subjects: no entry
Uncontrolled Keywords:
KeywordsLanguage
SINGLE-LAYER MOS2; TRANSITION-METAL DICHALCOGENIDES; SURFACE-STRUCTURE DETERMINATION; GRAPHENEMultiple languages
Materials Science, MultidisciplinaryMultiple languages
URI: http://kups.ub.uni-koeln.de/id/eprint/68561

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