MORPHOLOGICAL AND CRYSTALLOGRAPHIC PROPERTIES OF RARE EARTH OXIDES COATINGS DEPOSITED BY DOUBLE DUAL BEAM-PLD

S. Khamlich, B. D. Ngom, C. K. Kotsedi, K. Bouziane, E. Manikandan and M. Maaza ()
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S. Khamlich: UNESCO UNISA Africa Chair in Nanosciences & Nanotechnology, College of Graduate Studies, University of South Africa, Muckleneuk ridge, P. O. Box 392, Pretoria, South Africa;
B. D. Ngom: UNESCO UNISA Africa Chair in Nanosciences & Nanotechnology, College of Graduate Studies, University of South Africa, Muckleneuk ridge, P. O. Box 392, Pretoria, South Africa;
C. K. Kotsedi: UNESCO UNISA Africa Chair in Nanosciences & Nanotechnology, College of Graduate Studies, University of South Africa, Muckleneuk ridge, P. O. Box 392, Pretoria, South Africa;
K. Bouziane: UNESCO UNISA Africa Chair in Nanosciences & Nanotechnology, College of Graduate Studies, University of South Africa, Muckleneuk ridge, P. O. Box 392, Pretoria, South Africa;
E. Manikandan: UNESCO UNISA Africa Chair in Nanosciences & Nanotechnology, College of Graduate Studies, University of South Africa, Muckleneuk ridge, P. O. Box 392, Pretoria, South Africa;
M. Maaza: UNESCO UNISA Africa Chair in Nanosciences & Nanotechnology, College of Graduate Studies, University of South Africa, Muckleneuk ridge, P. O. Box 392, Pretoria, South Africa;

Surface Review and Letters (SRL), 2014, vol. 21, issue 01, 1-11

Abstract: Various rare earth oxide nanostructures were synthesized for the first time by dual-double pulsed gas feeding/pulsed laser deposition. The optically transparent and insulating nanostructures do not exhibit the standard columnar configuration of rare earth oxide thin films but rather dense structures and a significant chemical stoichiometry. More precisely, they exhibit single crystallographic low temperature phases with preferential textures, generally similar to that of the bulk used powder targets. For the cubic fluorine typeCeO2andHo2O3films, an epitaxial growth is observed with a special feature noticed in the case of theEu2O3nanostructure. For this latter, localized and very large oriented crystallites embedded in disordered packed pyramidal crystallites are observed.

Keywords: Double dual beam laser ablation; rare earth oxides; growth process; epitaxial growth (search for similar items in EconPapers)
Date: 2014
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DOI: 10.1142/S0218625X14500012

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