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Low temperature growth and characterization of (Na,K)NbOx thin films
Department of Physics, Linköping University.
Department of Physics, Linköping University.
Department of Physics, Linköping University.
Department of Physics, Linköping University.
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2003 (English)In: Journal of Crystal Growth, ISSN 0022-0248, E-ISSN 1873-5002, Vol. 254, no 3-4, p. 400-404Article in journal (Refereed) Published
Abstract [en]

Thin (Na,K)NbOx perovskite films (NKN) have been deposited on SiO2/Si(0 0 1) substrates at low temperatures, from 350°C to 550°C, by RF magnetron sputtering. The effects of substrate temperature on microstructure, electrical-, and mechanical properties of the NKN films have been studied. X-ray diffraction analysis revealed that films deposited at temperatures in the range of 450-550°C were crystalline, growing as a single phase, with a preferred orientation of (0 0 1). Films deposited at 350°C, were shown to be amorphous. The growth temperature had a strong influence on the electrical properties of the NKN films and the relative dielectric constants of the obtained films were in between 38 and 78. Variations of the mechanical properties of the NKN films were observed for different substrate temperatures: The elastic moduli and the hardness values ranged from 205±26 to 93±29 GPa, and from 12±2 to around 2 GPa, for films deposited at 550°C and 450°C, respectively.

Place, publisher, year, edition, pages
2003. Vol. 254, no 3-4, p. 400-404
National Category
Other Materials Engineering
Research subject
Engineering Materials
Identifiers
URN: urn:nbn:se:ltu:diva-13888DOI: 10.1016/S0022-0248(03)01184-9ISI: 000183468100016Scopus ID: 2-s2.0-0037809404Local ID: d3247f60-d509-11de-bae5-000ea68e967bOAI: oai:DiVA.org:ltu-13888DiVA, id: diva2:986841
Note

Validerad; 2003; 20091119 (andbra)

Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-07-10Bibliographically approved

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