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Surface phase diagram and temperature induced phase transitions of Sn/Cu(100)

Martinez-Blanco, J ; Joco, V ; Segovia, P ; Thiagarajan, Balasubramanian LU and Michel, EG (2006) Eight International Conference on Atomically Controlled Surfaces, Interfaces and Nanostructures and the Thirteenth International Congress on Thin Films - ACSIN8/ICTF13 252(15). p.5331-5334
Abstract
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... (More)
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. (Less)
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author
; ; ; and
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
phase transitions, copper, tin, surface X-ray diffraction, low energy electron diffraction (LEED), surface reconstruction, (SXRD)
host publication
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)
volume
252
issue
15
pages
5331 - 5334
publisher
Elsevier
conference name
Eight International Conference on Atomically Controlled Surfaces, Interfaces and Nanostructures and the Thirteenth International Congress on Thin Films - ACSIN8/ICTF13
conference location
Stockholm, Sweden
conference dates
2005-06-20 - 2005-06-23
external identifiers
  • wos:000238623300022
  • scopus:33746801957
ISSN
1873-5584
0169-4332
DOI
10.1016/j.apsusc.2005.12.011
language
English
LU publication?
yes
id
c191dbcd-0341-4f4d-9dc2-d35e26841568 (old id 405762)
date added to LUP
2016-04-01 12:29:08
date last changed
2020-06-10 02:37:17
@inproceedings{c191dbcd-0341-4f4d-9dc2-d35e26841568,
  abstract     = {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.},
  author       = {Martinez-Blanco, J and Joco, V and Segovia, P and Thiagarajan, Balasubramanian and Michel, EG},
  booktitle    = {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)},
  issn         = {1873-5584},
  language     = {eng},
  number       = {15},
  pages        = {5331--5334},
  publisher    = {Elsevier},
  title        = {Surface phase diagram and temperature induced phase transitions of Sn/Cu(100)},
  url          = {http://dx.doi.org/10.1016/j.apsusc.2005.12.011},
  doi          = {10.1016/j.apsusc.2005.12.011},
  volume       = {252},
  year         = {2006},
}