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Besland, M. P., Borderon, C., Barroy, P. R. J., Le Tacon, S., Richard-Plouet, M., Averty, D., Tessier, P. Y., Gundel, H. W., Brohan, L. & Djouadi, M. A. (2008) Improvement of dielectric properties of BLT thin films deposited by magnetron sputtering - art. no. 012006. Finnis, M. W., Hoffmann, M. J. & GautierSoyer, M. (Eds.), Interfacial Nanostructures in Ceramics: A Multiscale Approach Bristol. 
Added by: Richard Baschera (2016-03-10 21:58:43)   Last edited by: Richard Baschera (2016-11-30 15:17:41)
Type de référence: Chapitre/Section
Clé BibTeX: Besland2008
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Catégories: CESES, PCM
Mots-clés: buffer-layer, mgo, pulsed-laser deposition
Créateurs: Averty, Barroy, Besland, Borderon, Brohan, Djouadi, Finnis, GautierSoyer, Gundel, Hoffmann, Le Tacon, Richard-Plouet, Tessier
Éditeur: Iop Publishing Ltd (Bristol)
Collection: Interfacial {Nanostructures} in {Ceramics}: {A} {Multiscale} {Approach}
Consultations : 8/635
Indice de consultation : 4%
Indice de popularité : 1%
Well crystallized BLT thin films were deposited by RF magnetron sputtering using a target of Aurivillius phase Bi3.25L4.75Ti3O12 (BLT0,75), elaborated in our institute. RF sputtering experiments were performed at room temperature with an argon/oxygen mixture, in a pressure range of 20-50 mTorr. Optimisation of the plasma parameters, namely deposition pressure, RF power and oxygen content in the gas phase, allows obtaining BLT films with a chemical composition close to Bi3.25La0.75Ti3O12. After ex-situ annealing under oxygen atmosphere at 650 degrees C, BLT films deposited on Pt/TiO2/SiO2/Si (multilayer) substrates exhibit well defined rod-like grains morphology. A two step deposition process appeared to be necessary in order to reach satisfying dielectric properties. The effect of the plasma parameters on the chemical composition and electrical properties are presented and discussed.
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