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@ARTICLE{Pflitsch:40341,
author = {Pflitsch, C. and David, R. and Verheij, L. K. and Franchy,
R.},
title = {{P}reparation of a well ordered iron oxide on {C}u(110)},
journal = {Surface science},
volume = {488},
issn = {0039-6028},
address = {Amsterdam},
publisher = {Elsevier},
reportid = {PreJuSER-40341},
pages = {32},
year = {2001},
note = {Record converted from VDB: 12.11.2012},
abstract = {We have grown an ultra-thin film of iron oxide by oxidising
a smooth epitaxial 5 ML Fe film which was deposited on
Cu(110). In order to prevent roughening of the Fe film, the
oxidation of the iron took place at 130 K. At low oxygen
exposures, <2 x 10(-6) mbars, a surface oxide forms. After
completion of the surface oxide layer a disordered Fe2O3
film grows. Upon annealing, ordering of the oxide film is
observed at temperatures above 400 K. A Fe2O3 film With a
very well ordered surface could be produced by heating the
disordered oxide film. The ordered oxide surface shows a (21
x 6) reconstruction, which is interpreted as a coincidence
lattice of the Cu(110) substrate and it Fe2O3(111) lattice
which is slightly distorted due to a misfit with the
substrate $(0.7-2\%)$ and to a misalignment between the
major crystallographic axes of the lattices. When the oxide
film is slowly heated, decomposition of the oxide takes
place in two stages: Between 550 and 700 K, the Fe2O3 film
decomposes due to a reaction of this oxide with a buried
layer of Fe or FeO. Between 700 and 800 K a further
decomposition of the Fe2O3 is found, but now accompanied by
desorption of oxygen and solution of Fe in the Cu substrate.
The amount of oxygen and iron on the surface keeps on
decreasing after the almost complete decomposition of Fe2O3
(at 800 K) until a new phase is obtained which is stable
between 950 and 1100 K, This high temperature phase (T > 950
K) shows a (n x 8) reconstruction with n = 17-19. This
reconstruction is interpreted as the result of a coincidence
lattice of the Cu(110) substrate with a distorted FeO(111)
lattice. (C) 2001 Elsevier Science B.V. All rights
reserved.},
keywords = {J (WoSType)},
cin = {ISG-3},
ddc = {540},
cid = {I:(DE-Juel1)VDB43},
pnm = {Grenzflächenaspekte der Informationstechnik},
pid = {G:(DE-Juel1)FUEK61},
shelfmark = {Chemistry, Physical / Physics, Condensed Matter},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000170230200008},
doi = {10.1016/S0039-6028(01)01106-2},
url = {https://juser.fz-juelich.de/record/40341},
}