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000040341 0247_ $$2DOI$$a10.1016/S0039-6028(01)01106-2
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000040341 084__ $$2WoS$$aChemistry, Physical
000040341 084__ $$2WoS$$aPhysics, Condensed Matter
000040341 1001_ $$0P:(DE-Juel1)VDB5560$$aPflitsch, C.$$b0$$uFZJ
000040341 245__ $$aPreparation of a well ordered iron oxide on Cu(110)
000040341 260__ $$aAmsterdam$$bElsevier$$c2001
000040341 300__ $$a32
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000040341 440_0 $$05673$$aSurface Science$$v488$$x0039-6028
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000040341 520__ $$aWe 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.
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000040341 65320 $$2Author$$aatom-solid scattering and diffraction - elastic
000040341 65320 $$2Author$$aauger electron spectroscopy
000040341 65320 $$2Author$$acopper
000040341 65320 $$2Author$$airon
000040341 65320 $$2Author$$airon oxide
000040341 65320 $$2Author$$aepitaxy
000040341 65320 $$2Author$$agrowth
000040341 65320 $$2Author$$asurface structure, morphology, roughness, and topography
000040341 7001_ $$0P:(DE-Juel1)VDB5790$$aDavid, R.$$b1$$uFZJ
000040341 7001_ $$0P:(DE-Juel1)VDB5574$$aVerheij, L. K.$$b2$$uFZJ
000040341 7001_ $$0P:(DE-Juel1)VDB5400$$aFranchy, R.$$b3$$uFZJ
000040341 773__ $$0PERI:(DE-600)1479030-0$$a10.1016/S0039-6028(01)01106-2$$gVol. 488, p. 32$$p32$$q488<32$$tSurface science$$v488$$x0039-6028$$y2001
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000040341 9141_ $$y2001
000040341 915__ $$0StatID:(DE-HGF)0010$$aJCR/ISI refereed
000040341 9201_ $$0I:(DE-Juel1)VDB43$$d31.12.2006$$gISG$$kISG-3$$lInstitut für Grenzflächen und Vakuumtechnologien$$x0
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