Structural Characterization of LaCoO3 Thin Films Grown by Pulsed Laser Deposition

• Autorzy: Jędrusik M. , Cieniek Ł. , Kopia A. , Turquat C. , Leroux C.

Identyfikatory

DOI

10.24425/amm.2020.132822

• Języki publikacji: EN

Abstrakty

EN

Thin films of crystallized LaCoO₃ were grown on Si substrate by Pulsed Laser Deposition at different temperatures (750°C, 850°C and 1000°C). The structural characterization of the LaCoO₃ thin films was done by combining several techniques: Scanning Electron Microscopy (SEM), Atomic Force Microscope (AFM), Transmission Electron Microscopy (TEM) and Grazing Incidence X-Ray Diffraction (GIXRD). The thin films crystallized in the expected rhombohedral phase whatever the deposition temperature, with an increase of crystallite size from 70 nm at 750°C to 100 nm at 1000°C, and an average thickness of the thin films of less than 200 nm. At 850°C and 1000°C, the thin films are crack-free, and with a lower number of droplets than the film deposited at 750°C. The grains of LaCoO₃ film deposited at 850°C are columnar, with a triangular termination. At 1000°C, an intermediate layer of La₂ Si₂ O₇ was observed, indicating diffusion of Si into the deposited film.

Słowa kluczowe

EN

PLD; thin films; perovskites; LaCoO3

• Wydawca: Institute of Metallurgy and Materials Science of Polish Academy of Sciences ; Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences
• Czasopismo: Archives of Metallurgy and Materials
• Rocznik: 2020
• Tom: Vol. 65, iss. 2
• Strony: 793--797
• Opis fizyczny: Bibliogr. 25 poz., fot., rys., tab.

Twórcy

autor

Jędrusik M.

• AGH University of Science and Technology, Department of Surface Engineering and Materials Characterisation, Faculty of Metals Engineering and Industrial Computer Science, Al. A. Mickiewicza 30, 30-059 Kraków, Poland
• Université de Toulon, AMU, CNRS, IM2NP, Cs 60584, Toulon, F-83041, France

autor

Cieniek Ł.

• AGH University of Science and Technology, Department of Surface Engineering and Materials Characterisation, Faculty of Metals Engineering and Industrial Computer Science, Al. A. Mickiewicza 30, 30-059 Kraków, Poland

autor

Kopia A.

• AGH University of Science and Technology, Department of Surface Engineering and Materials Characterisation, Faculty of Metals Engineering and Industrial Computer Science, Al. A. Mickiewicza 30, 30-059 Kraków, Poland

autor

Turquat C.

• Université de Toulon, AMU, CNRS, IM2NP, Cs 60584, Toulon, F-83041, France

autor

Leroux C.

• Université de Toulon, AMU, CNRS, IM2NP, Cs 60584, Toulon, F-83041, France

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Uwagi

EN

1. This work was done in the general framework of the French-Polish PHC Polonium 40523VD exchange program. Authors acknowledge the Ph.D. scholarship of the French embassy in Poland.

PL

2. Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).