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Evaluation of recipes for obtaining single terminated perovskite oxide substrates
Jönköping University, School of Education and Communication, HLK, Disciplinary Research. Jönköping University, School of Education and Communication, HLK, School Based Research, Sustainable Development and Science education.
Chalmers tekniska högskola. (Kvantkomponentfysik)
Chalmers tekniska högskola. (Kvantkomponentfysik)
2009 (English)In: Surface Science, ISSN 0039-6028, E-ISSN 1879-2758, Vol. 603, no 1, 151-157 p.Article in journal (Refereed) Published
Abstract [en]

We have re-assessed different methods to obtain single terminated perovskite oxide substrate surfaces of SrTiO3, LaAlO3 and NdGaO3. The surfaces have been probed by a combination of atomic and lateral force microscopy, X-ray photoelectron spectroscopy and reflection high-energy electron diffraction. (0 0 1)SrTiO3 surfaces were prepared with HF or plasma etching and annealing, (0 0 1)LaAlO3 surfaces were prepared with or without HCl etching and a consecutive annealing at 750–1100 °C, and (1 1 0)NdGaO3 surfaces were only annealed. Two of the recipes have previously been suggested to result in A-site terminated surfaces. However, except for the case of high-temperature annealed LaAlO3 where we observe a double-terminated surface, our data suggest that the single terminated surfaces obtained by these methods were of B-site type.

Place, publisher, year, edition, pages
Elsevier , 2009. Vol. 603, no 1, 151-157 p.
Keyword [en]
Oxide substrate, Surface termination
National Category
Condensed Matter Physics
Identifiers
URN: urn:nbn:se:hj:diva-10337DOI: 10.1016/j.susc.2008.10.045OAI: oai:DiVA.org:hj-10337DiVA: diva2:235052
Available from: 2009-09-12 Created: 2009-09-12 Last updated: 2014-01-29Bibliographically approved

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