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  Two-dimensional wetting layer structures of reduced ternary oxides on Ru(0001) and Pt(111)

Zollner, E. M., Schuster, F., Meinel, K., Stötzner, P., Schenk, S., Allner, B., et al. (2020). Two-dimensional wetting layer structures of reduced ternary oxides on Ru(0001) and Pt(111). Physica Status Solidi B, 257(7): 1900655. doi:10.1002/pssb.201900655.

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Item Permalink: https://hdl.handle.net/21.11116/0000-0008-D9EF-7 Version Permalink: https://hdl.handle.net/21.11116/0000-0009-4F45-2
Genre: Journal Article

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2020
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https://doi.org/10.1002/pssb.201900655 (Publisher version)
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 Creators:
Zollner, Eva Maria1, Author
Schuster, Fabian1, Author
Meinel, Klaus1, Author
Stötzner, Philine1, Author
Schenk, Sebastian1, Author
Allner, Bettina1, Author
Förster, Stefan1, Author
Widdra, Wolf2, Author
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1External Organizations, ou_persistent22              
2Max Planck Institute of Microstructure Physics, Max Planck Society, Weinberg 2, 06120 Halle, DE, ou_2415691              

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 Abstract: Long-range ordered structures of reduced oxide films with monolayer thickness derived from BaTiO3 and SrTiO3 on Ru(0001) and Pt(111) are investigated by scanning tunneling microscopy (STM) and low-energy electron diffraction (LEED). Upon ultrahigh vacuum annealing at 1100 K, a hexagonal phase is observed for BaTiO3 on Ru(0001), which forms similarly from SrTiO3 on Pt(111). At higher temperatures, a triangle–square tiling called σ-phase develops in the BaTiO3/Ru(0001) system, with a unit cell rotation of 15° against the Ru(0001) substrate. Furthermore, it is shown that this 15° rotated σ-phase also forms in the BaTiO3/Pt(111) system in addition to the already known 8° rotated σ-phase. The results emphasize a strong flexibility in the structural parameters of the reduced oxide wetting layers in response to the substrate interaction strength.

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 Dates: 2020-01-142020-07
 Publication Status: Issued
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 Identifiers: BibTex Citekey: P13868
DOI: 10.1002/pssb.201900655
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Title: Physica Status Solidi B
  Abbreviation : Phys. Status Solidi B
Source Genre: Journal
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Publ. Info: Weinheim : Wiley-VCH
Pages: - Volume / Issue: 257 (7) Sequence Number: 1900655 Start / End Page: - Identifier: ISSN: 0370-1972
CoNE: https://pure.mpg.de/cone/journals/resource/958480240330