{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,1]],"date-time":"2026-10-01T04:04:47Z","timestamp":1790827487962,"version":"4.1.0"},"reference-count":75,"publisher":"MDPI AG","issue":"10","license":[{"start":{"date-parts":[[2018,10,13]],"date-time":"2018-10-13T00:00:00Z","timestamp":1539388800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100004281","name":"Narodowe Centrum Nauki","doi-asserted-by":"publisher","award":["2012\/05\/D\/ST3\/02855"],"award-info":[{"award-number":["2012\/05\/D\/ST3\/02855"]}],"id":[{"id":"10.13039\/501100004281","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001870","name":"Fundacja na rzecz Nauki Polskiej","doi-asserted-by":"publisher","award":["First TEAM\/2016-2\/14"],"award-info":[{"award-number":["First TEAM\/2016-2\/14"]}],"id":[{"id":"10.13039\/501100001870","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100015097","name":"ICM UW","doi-asserted-by":"publisher","award":["G44-23"],"award-info":[{"award-number":["G44-23"]}],"id":[{"id":"10.13039\/501100015097","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Nanomaterials"],"abstract":"<jats:p>Ultrathin transition metal oxide films exhibit unique physical and chemical properties not observed for the corresponding bulk oxides. These properties, originating mainly from the limited thickness and the interaction with the support, make those films similar to other supported 2D materials with bulk counterparts, such as transition metal dichalcogenides. Ultrathin iron oxide (FeO) films, for example, were shown to exhibit unique electronic, catalytic and magnetic properties that depend on the type of the used support. Ag(111) has always been considered a promising substrate for FeO growth, as it has the same surface symmetry, only ~5% lattice mismatch, is considered to be weakly-interacting and relatively resistant to oxidation. The reports on the growth and structure of ultrathin FeO films on Ag(111) are scarce and often contradictory to each other. We attempted to shed more light on this system by growing the films using different preparation procedures and studying their structure using scanning tunneling microscopy (STM), low energy electron diffraction (LEED) and X-ray photoelectron spectroscopy (XPS). We observed the formation of a previously unreported Moir\u00e9 superstructure with 45 \u00c5 periodicity, as well as other reconstructed and reconstruction-free surface species. The experimental results obtained by us and other groups indicate that the structure of FeO films on this particular support critically depends on the films\u2019 preparation conditions. We also performed density functional theory (DFT) calculations on the structure and properties of a conceptual reconstruction-free FeO film on Ag(111). The results indicate that such a film, if successfully grown, should exhibit tunable thickness-dependent properties, being substrate-influenced in the monolayer regime and free-standing-FeO-like when in the bilayer form.<\/jats:p>","DOI":"10.3390\/nano8100828","type":"journal-article","created":{"date-parts":[[2018,10,15]],"date-time":"2018-10-15T03:43:01Z","timestamp":1539574981000},"page":"828","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":13,"title":["On the Structure of Ultrathin FeO Films on Ag(111)"],"prefix":"10.3390","volume":"8","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-1480-8516","authenticated-orcid":false,"given":"Miko\u0142aj","family":"Lewandowski","sequence":"first","affiliation":[{"name":"NanoBioMedical Centre, Adam Mickiewicz University, Umultowska 85, 61-614 Pozna\u0144, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6679-6609","authenticated-orcid":false,"given":"Tomasz","family":"Pabisiak","sequence":"additional","affiliation":[{"name":"Institute of Experimental Physics, University of Wroc\u0142aw, Pl. M. Borna 9, 50-204 Wroc\u0142aw, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Natalia","family":"Michalak","sequence":"additional","affiliation":[{"name":"Institute of Molecular Physics, Polish Academy of Sciences, M. Smoluchowskiego 17, 60-179 Pozna\u0144, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zygmunt","family":"Mi\u0142osz","sequence":"additional","affiliation":[{"name":"NanoBioMedical Centre, Adam Mickiewicz University, Umultowska 85, 61-614 Pozna\u0144, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Vi\u0161nja","family":"Baba\u010di\u0107","sequence":"additional","affiliation":[{"name":"NanoBioMedical Centre, Adam Mickiewicz University, Umultowska 85, 61-614 Pozna\u0144, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ying","family":"Wang","sequence":"additional","affiliation":[{"name":"NanoBioMedical Centre, Adam Mickiewicz University, Umultowska 85, 61-614 Pozna\u0144, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3505-6912","authenticated-orcid":false,"given":"Micha\u0142","family":"Hermanowicz","sequence":"additional","affiliation":[{"name":"Institute of Physics, Poznan University of Technology, Piotrowo 3, 60-965 Pozna\u0144, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1914-2901","authenticated-orcid":false,"given":"Kriszti\u00e1n","family":"Palot\u00e1s","sequence":"additional","affiliation":[{"name":"MTA-SZTE Reaction Kinetics and Surface Chemistry Research Group, University of Szeged, 6720 Szeged, Hungary"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Stefan","family":"Jurga","sequence":"additional","affiliation":[{"name":"NanoBioMedical Centre, Adam Mickiewicz University, Umultowska 85, 61-614 Pozna\u0144, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Adam","family":"Kiejna","sequence":"additional","affiliation":[{"name":"Institute of Experimental Physics, University of Wroc\u0142aw, Pl. M. Borna 9, 50-204 Wroc\u0142aw, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2018,10,13]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"10144","DOI":"10.1002\/chem.201201117","article-title":"Two-Dimensional Oxides: Multifunctional Materials for Advanced Technologies","volume":"18","author":"Pacchioni","year":"2012","journal-title":"Chem. Eur. J."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"513","DOI":"10.1016\/S0920-5861(99)00037-1","article-title":"Model catalyst studies with single crystals and epitaxial thin oxide films","volume":"51","author":"Peden","year":"1999","journal-title":"Catal. 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