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  Method for the Manual Analysis of Moiré Structures in STM images

Günther, S., Zeller, P., Böller, B., & Wintterlin, J. (2021). Method for the Manual Analysis of Moiré Structures in STM images. ChemPhysChem, 22(9), 870-884. doi:10.1002/cphc.202001034.

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Günther, Sebastian1, Author
Zeller, Patrick2, 3, 4, Author           
Böller, Bernhard5, 6, Author
Wintterlin, Joost5, 6, Author
Affiliations:
1Fakultät für Chemie, Technische Universität München, Lichtenbergstr. 4, Garching, 85748, Germany, ou_persistent22              
2Elettra – Sincrotrone Trieste S.C.p.A., SS14 – km 163.5, Basovizza, 34149, Italy, ou_persistent22              
3Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, BESSY II, Albert-Einstein-Straße 15, Berlin, 12489, Germany, ou_persistent22              
4Inorganic Chemistry, Fritz Haber Institute, Max Planck Society, ou_24023              
5Department Chemie, Ludwig-Maximilians-Universität München, Butenandtstr. 5–13, Munich, 81377, Germany, ou_persistent22              
6Center for NanoScience, Schellingstr. 4, Munich, 80799, Germany, ou_persistent22              

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 Abstract: A method is presented to manually determine the lattice parameters of commensurate hexagonal moiré structures resolved by STM. It solves the problem that lattice parameters of moiré structures usually cannot be determined by inspection of an STM image, so that computer‐based analyses are required. The lattice vector of a commensurate moiré structure is a sum of integer multiples both of the two basis vectors of the substrate and of the adsorbed layer. The method extracts the two factors with respect to the adsorbed layer from an analysis of the Fourier transform of an STM image. These two factors are related to the two factors with respect to the substrate layer. Using the cell augmentation method, six possible moiré structures are identified by algebra. When the orientation and lattice constant of the substrate are roughly known, this information is usually sufficient to determine a unique moiré structure and its lattice parameters.

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Language(s): eng - English
 Dates: 2020-12-212021-05-05
 Publication Status: Published online
 Pages: 15
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 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1002/cphc.202001034
 Degree: -

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Title: ChemPhysChem
Source Genre: Journal
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Publ. Info: Weinheim, Germany : Wiley-VCH
Pages: 15 Volume / Issue: 22 (9) Sequence Number: - Start / End Page: 870 - 884 Identifier: ISSN: 1439-4235
CoNE: https://pure.mpg.de/cone/journals/resource/954925409790