Formation and Structure of Graphene Waves on Fe(110)
(2012) In Physical Review Letters 109(2).- Abstract
- A very rich Fe-C phase diagram makes the formation of graphene on iron surfaces a challenging task. Here we demonstrate that the growth of graphene on epitaxial iron films can be realized by chemical vapor deposition at relatively low temperatures, and that the formation of carbides can be avoided in excess of the carbon-containing precursors. The resulting graphene monolayer creates a novel periodically corrugated pattern on Fe(110). Using low-energy electron microscopy and scanning tunneling microscopy, we show that it is modulated in one dimension forming long waves with a period of similar to 4 nm parallel to the [001] direction of the substrate, with an additional height modulation along the wave crests. The observed topography of the... (More)
- A very rich Fe-C phase diagram makes the formation of graphene on iron surfaces a challenging task. Here we demonstrate that the growth of graphene on epitaxial iron films can be realized by chemical vapor deposition at relatively low temperatures, and that the formation of carbides can be avoided in excess of the carbon-containing precursors. The resulting graphene monolayer creates a novel periodically corrugated pattern on Fe(110). Using low-energy electron microscopy and scanning tunneling microscopy, we show that it is modulated in one dimension forming long waves with a period of similar to 4 nm parallel to the [001] direction of the substrate, with an additional height modulation along the wave crests. The observed topography of the graphene/Fe superstructure is well reproduced by density functional theory calculations, and found to result from a unique combination of the lattice mismatch and strong interfacial interaction, as probed by core-level photoemission and x-ray absorption spectroscopy. (Less)
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https://lup.lub.lu.se/record/2994989
- author
- organization
- publishing date
- 2012
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Physical Review Letters
- volume
- 109
- issue
- 2
- article number
- 026101
- publisher
- American Physical Society
- external identifiers
-
- wos:000306324100012
- scopus:84863701209
- pmid:23030182
- ISSN
- 1079-7114
- DOI
- 10.1103/PhysRevLett.109.026101
- language
- English
- LU publication?
- yes
- id
- 2c9a3202-6162-40e3-848a-ab46661b72e6 (old id 2994989)
- date added to LUP
- 2016-04-01 10:02:53
- date last changed
- 2023-11-09 10:30:17
@article{2c9a3202-6162-40e3-848a-ab46661b72e6, abstract = {{A very rich Fe-C phase diagram makes the formation of graphene on iron surfaces a challenging task. Here we demonstrate that the growth of graphene on epitaxial iron films can be realized by chemical vapor deposition at relatively low temperatures, and that the formation of carbides can be avoided in excess of the carbon-containing precursors. The resulting graphene monolayer creates a novel periodically corrugated pattern on Fe(110). Using low-energy electron microscopy and scanning tunneling microscopy, we show that it is modulated in one dimension forming long waves with a period of similar to 4 nm parallel to the [001] direction of the substrate, with an additional height modulation along the wave crests. The observed topography of the graphene/Fe superstructure is well reproduced by density functional theory calculations, and found to result from a unique combination of the lattice mismatch and strong interfacial interaction, as probed by core-level photoemission and x-ray absorption spectroscopy.}}, author = {{Vinogradov, Nikolay and Zakharov, Alexei and Kocevski, V. and Rusz, J. and Simonov, K. A. and Eriksson, O. and Mikkelsen, Anders and Lundgren, Edvin and Vinogradov, A. S. and Mårtensson, Nils and Preobrajenski, Alexei}}, issn = {{1079-7114}}, language = {{eng}}, number = {{2}}, publisher = {{American Physical Society}}, series = {{Physical Review Letters}}, title = {{Formation and Structure of Graphene Waves on Fe(110)}}, url = {{https://lup.lub.lu.se/search/files/1512411/3216743.pdf}}, doi = {{10.1103/PhysRevLett.109.026101}}, volume = {{109}}, year = {{2012}}, }