Enhanced crystallinity of (Sr,Ba)Nb2O6 films on sapphire and alumina substrates

Tumarkin, A.V.; Ivleva, L.I.; Prokhorov, K.A.; Novikov, I.A.; Voronov, V.V.; Lykov, P.A.; Yakushev, A.O.; Bogdan, A.; Sapego, E.N.

doi:10.1016/j.tsf.2024.140528

Thin Solid Films

2024

DOI: 10.1016/j.tsf.2024.140528

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Enhanced crystallinity of (Sr,Ba)Nb2O6 films on sapphire and alumina substrates

A.V. Tumarkin,

L.I. Ivleva,

K.A. Prokhorov

et al.

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2024

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Characterization of the Microstructure of Sr0.75Ba0.25Nb2O6 Thin Films by Brillouin Light Scattering

Pugachev,

Tumarkin,

Adichtchev

et al. 2024

Nanomaterials

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Strontium-barium niobate (SrxBa(1−x)Nb2O6) films can be considered as a promising material for microwave applications due to high dielectric nonlinearity and relatively low losses. Since strontium-barium niobate has a disordered structure that determines its unique electrical properties, the identification of structural features of the SrxBa(1−x)Nb2O6 films is the key to their successful use. The SrxBa(1−x)Nb2O6 films were synthesized on a sapphire substrate by magnetron sputtering. The structure of the films was studied by both traditional methods of electron microscopy, X-ray diffraction, and the rarely used for thin films investigation Brillouin light scattering method, which was the focus of our study. We show that Brillouin light scattering is an excellent nondestructive method for studying the structural features of thin ferroelectric strontium-barium niobate films. An analysis of the features of the Brillouin light scattering spectra in thin-film structures and their comparison with the spectra of bulk crystals allowed us to determine with high accuracy the thickness of the films under study and their structural features determined by the resonant scattering of acoustic waves.

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Characterization of the Microstructure of Sr0.75Ba0.25Nb2O6 Thin Films by Brillouin Light Scattering

Pugachev,

Tumarkin,

Adichtchev

et al. 2024

Nanomaterials

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show abstract

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Enhanced crystallinity of (Sr,Ba)Nb2O6 films on sapphire and alumina substrates

Cited by 1 publication

References 33 publications

Characterization of the Microstructure of Sr0.75Ba0.25Nb2O6 Thin Films by Brillouin Light Scattering

Characterization of the Microstructure of Sr0.75Ba0.25Nb2O6 Thin Films by Brillouin Light Scattering

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