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Titolo:
X-ray surface diffraction analysis of structural transformations on the (001) surface of oxidized SrTiO3
Autore:
Kazimirov, A; Goodner, DM; Bedzyk, MJ; Bai, J; Hubbard, CR;
Indirizzi:
Northwestern Univ, Dept Mat Sci, Evanston, IL 60208 USA Northwestern UnivEvanston IL USA 60208 t Mat Sci, Evanston, IL 60208 USA Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA Argonne Natl Lab Argonne IL USA 60439 Div Mat Sci, Argonne, IL 60439 USA Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA Oak Ridge Natl Lab Oak Ridge TN USA 37831 tl Lab, Oak Ridge, TN 37831 USA
Titolo Testata:
SURFACE SCIENCE
fascicolo: 1-2, volume: 492, anno: 2001,
pagine: L711 - L716
SICI:
0039-6028(20011010)492:1-2<L711:XSDAOS>2.0.ZU;2-M
Fonte:
ISI
Lingua:
ENG
Soggetto:
DEMIXING PROFILE CALCULATION; ATOMIC-FORCE MICROSCOPY; INTERFACIAL SEGREGATION; PEROVSKITES; GRADIENT;
Keywords:
alkaline earth metals; X-ray scattering, diffraction, and reflection; atomic force microscopy; surface segregation; surface, structure, morphology, roughness; and topography;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
21
Recensione:
Indirizzi per estratti:
Indirizzo: Kazimirov, A Cornell Univ, Wilson Lab, Cornell High Energy Synchrotron Source, Ithaca, NY 14853 USA Cornell Univ Ithaca NY USA 14853 ource, Ithaca, NY 14853 USA
Citazione:
A. Kazimirov et al., "X-ray surface diffraction analysis of structural transformations on the (001) surface of oxidized SrTiO3", SURF SCI, 492(1-2), 2001, pp. L711-L716

Abstract

Surface X-ray scattering was used to study structural modifications on the(0 0 1) surface of oxidized SrTiO3. Grazing incidence in-plane X-ray diffraction revealed a sequence of quasi-powder diffraction peaks originating from crystallites with nearly random in-plane orientation. This diffraction pattern is associated with micro-crystallites of irregular shape observed byatomic force microscopy on the surface after annealing in oxygen. Analysisbased on available powder diffraction data identified these crystallites as monoclinic TiO. Different oxygen annealing treatments led to dramatic changes in the specular (0 0 L) crystal truncation rods indicating significantstructural modifications in the underlying single crystal SrTiO3 surface layer. (C) 2001 Elsevier Science B.V. All rights reserved.

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Documento generato il 05/12/20 alle ore 01:51:48