Low temperature growth of NiO epitaxial films on c-sapphire substrate by pulsed laser deposition technique

NiO films are grown on c-sapphire substrates using pulsed laser deposition technique at different growth temperatures. Both in-plane and out of plane X-ray diffraction studies reveal high epitaxial quality of the film on sapphire. The surface morphology of the films is studied by atomic force micros...

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Hauptverfasser: Sahu, Bhabani Prasad, Yadav, Santosh Kumar, Dhar, Subhabrata
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Yadav, Santosh Kumar
Dhar, Subhabrata
description NiO films are grown on c-sapphire substrates using pulsed laser deposition technique at different growth temperatures. Both in-plane and out of plane X-ray diffraction studies reveal high epitaxial quality of the film on sapphire. The surface morphology of the films is studied by atomic force microscopy, which shows smooth and continuous morphology with root mean square (RMS) roughness less than 2 nm. Resistivity of the film is observed to depend strongly on the growth temperature. This has been attributed to the growth temperature dependent variation of Ni vacancy concentration in the film.
doi_str_mv 10.1063/5.0178400
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source AIP Journals Complete
subjects Epitaxial growth
Low temperature
Morphology
Nickel oxides
Pulsed laser deposition
Pulsed lasers
Sapphire
Substrates
Temperature dependence
title Low temperature growth of NiO epitaxial films on c-sapphire substrate by pulsed laser deposition technique
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