Epitaxial growth of (Ba0.7Sr0.3)TiO3 thin films on GdScO3 substrates by magnetron sputtering

نویسندگان

چکیده

Epitaxial growth of Ba0.7Sr0.3TiO3 (BST70) thin films on GdScO3 (GSO) substrates had been realized using the radio frequency magnetron sputtering system with epitaxial alignment [001]BST70||[110]GSO and [010]BST70||[001]GSO. Reciprocal space mapping transmission electron microscope results confirm without an impurity phase at interface. The Fourier-filtered image shows that BST70 film grew well few dislocations. out-of-plane parameter as-deposited was elongated due to strain, which induced by differences in thermal expansion coefficients between substrate, oxygen vacancies. highly strained could be relaxed post-annealing procedure 800 °C O2-rich atmosphere for better quality.

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ژورنال

عنوان ژورنال: AIP Advances

سال: 2023

ISSN: ['2158-3226']

DOI: https://doi.org/10.1063/5.0145137