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  Assessing the film-substrate interaction in germania films on reconstructed Au(111)

Lewandowski, A., Stavale, F., Tosoni, S., Schneider, W.-D., Heyde, M., Pacchioni, G., et al. (2019). Assessing the film-substrate interaction in germania films on reconstructed Au(111). Physical Review B, 100(24): 241403(R). doi:10.1103/PhysRevB.100.241403.

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PhysRevB.100.241403.pdf (Publisher version), 3MB
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 Creators:
Lewandowski, Adrian1, Author           
Stavale, F.2, Author
Tosoni, S.3, Author
Schneider, Wolf-Dieter1, Author           
Heyde, Markus1, Author           
Pacchioni, G.3, Author
Freund, Hans-Joachim1, Author           
Affiliations:
1Chemical Physics, Fritz Haber Institute, Max Planck Society, ou_24022              
2Centro Brasileiro de Pesquisas Físicas, 22290-180 Rio de Janeiro, RJ, Brazil, ou_persistent22              
3Department of Materials Science, Università di Milano-Bicocca, Via R. Cozzi 55, Milan, Italy, ou_persistent22              

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 Abstract: Purely amorphous germania bilayer films are grown on a reconstructed Au(111) surface. The presence of the film affects the native configuration of the Au soliton walls, as observed with scanning tunneling microscopy. They partly avoid the film islands, and partly penetrate under film patches. This behavior indicates a weaker film-substrate interaction than the one reported for other oxide films on reconstructed Au(111). Moreover, this new system highlights the impact of the metal support on the structure of ultrathin films of germania: With decreasing film-substrate interaction the amorphous phase is promoted. Density functional theory calculations confirm and rationalize the experimental observations. This work provides a useful generalization of the relationship between film structure and adhesion energy.

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Language(s): eng - English
 Dates: 2019-10-142019-09-032019-12-062019-12-15
 Publication Status: Published in print
 Pages: 6
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1103/PhysRevB.100.241403
 Degree: -

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Project name : CRYVISIL - Crystalline and vitreous silica films and their interconversion
Grant ID : 669179
Funding program : Horizon 2020 (H2020)
Funding organization : European Commission (EC)

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Title: Physical Review B
  Abbreviation : Phys. Rev. B
Source Genre: Journal
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Publ. Info: Woodbury, NY : American Physical Society
Pages: 6 Volume / Issue: 100 (24) Sequence Number: 241403(R) Start / End Page: - Identifier: ISSN: 1098-0121
CoNE: https://pure.mpg.de/cone/journals/resource/954925225008