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Surface phase diagr...
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Martinez-Blanco, J
(author)
Surface phase diagram and temperature induced phase transitions of Sn/Cu(100)
- Article/chapterEnglish2006
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LIBRIS-ID:oai:lup.lub.lu.se:c191dbcd-0341-4f4d-9dc2-d35e26841568
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https://lup.lub.lu.se/record/405762URI
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https://doi.org/10.1016/j.apsusc.2005.12.011DOI
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Language:English
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Summary in:English
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Subject category:kon swepub-publicationtype
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Subject category:ref swepub-contenttype
Notes
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Room temperature deposition of Sn on Cu(100) gives rise to a rich variety of surface reconstructions in the submonolayer coverage range. In this work, we report a detailed investigation on the phases appearing and their temperature stability range by using low-energy electron diffraction and surface X-ray diffraction. Previously reported reconstructions in the submonolayer range are p(2 x 2) (for 0.2 ML), p(2 x 6) (for 0.33 ML), (3 root 2 x root 2)R45 degrees (for 0.5 ML), and c(4 x 4) (for 0.65 ML). We find a new phase with a ((-4)(0) (2)(4)) structure for a coverage of 0.45 ML. Furthermore, we analyze the temperature stability of all phases. We find that two phases exhibit a temperature induced reversible phase transition: the (3 root 2 x root 2)R45 degrees phase becomes (root 2 x root 2)R45 degrees phase above 360 K, and the new ((-4)(0) (2)(4)) phase becomes p(2 x 2) also above 360 K. The origin of these two-phase transitions is discussed. (c) 2005 Elsevier B.V. All rights reserved.
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Joco, V
(author)
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Segovia, P
(author)
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Thiagarajan, BalasubramanianLund University,Lunds universitet,MAX IV-laboratoriet,MAX IV Laboratory(Swepub:lu)maxl-bth
(author)
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Michel, EG
(author)
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Lunds universitetMAX IV-laboratoriet
(creator_code:org_t)
Related titles
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In:Proceedings of the Eight International Conference on Atomically Controlled Surfaces, Interfaces and Nanostructures and the Thirteenth International Congress on Thin Films - ACSIN8/ICTF13 (Applied Surface Science): Elsevier BV252:15, s. 5331-53340169-43321873-5584
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