Callaghan Innovation Research Papers

Back to Research Papers

TitleIn-situ observation of perovskite formation on the surface of Sr3La2Ti2O10
Publication TypeJournal Article
Year of Publication1996
AuthorsBowden, M.E., Jefferson D.A., and Brown I.W.M.
JournalSurface Science
Pagination317 - 322
Date Published1996
ISSN00396028 (ISSN)
KeywordsAmorphous materials, computer simulation, Crystalline materials, Crystallization, Electron beams, Electron bombardment, Electron microscopy, Image simulation, Interfaces (materials), Perovskite, Strontium compounds, Surface phenomena, Surface reconstruction, Surface relaxation, Surface structure
AbstractHigh resolution electron microscopy has been used to monitor the changes at the surface of Sr3La2Ti2O10 caused by electron beam irradiation. Initially, the surface is covered by a layer of amorphous metal oxide a few tens of angstrom units thick. Crystallisation occurs within this layer and continues with further exposure to the electron beam. Computer modelling and image simulations have shown that the new surface structure is that of perovskite, which possesses corner-linked TiO6 octahedra in common with the bulk compound.

Back to top