Structure of singly terminated polar DyScO 3 (110) surfaces
Publication Type
Journal Article
Authors
Kleibeuker, J.E, B Kuiper, S Harkema, D.H.A Blank, G Koster, G Rijnders, P Tinnemans, E Vlieg, P.B Rossen, W Siemons, G Portale, J Ravichandran, J.M Szepieniec, Ramamoorthy Ramesh
DOI
Abstract
We have studied the polar surface of singly terminated DyScO 3 (110) crystals by reflective high-energy electron diffraction, surface x-ray diffraction and angle-resolved mass spectroscopy of recoiled ions. These techniques show that the surfaces are (1 × 1) reconstructed, which points to the absence of ordered cation vacancies at the surface. The best surfaces were obtained after a selective chemical wet etch. We suggest that for ScO 2 terminated surfaces, adsorbates, or oxygen vacancies are most likely to occur in order to overcome the polarity difference between stoichiometric bulk crystal and vacuum. © 2012 American Physical Society.
Journal
Physical Review B - Condensed Matter and Materials Physics
Volume
85
Year of Publication
2012
ISSN
10980121
Notes
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