Influence of polarization of nanosized films of barium-strontium titanate on the characteristics of ferroelectric phase shifters of the microwave range

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Abstract

The features of the behavior of polarization and tunability of thin ferroelectric films of barium-strontium titanate in a wide temperature range for two groups differing in production conditions are considered. An indirect connection between the tunability coefficient of film capacitors and the polarization of films has been noted.

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About the authors

V. M. Mukhortov

Federal Research Center Southern Scientific Center of the Russian Academy of Sciences

Author for correspondence.
Email: mukhortov1944@mail.ru
Russian Federation, Rostov-on-Don, 344006

S. V. Biryukov

Federal Research Center Southern Scientific Center of the Russian Academy of Sciences

Email: mukhortov1944@mail.ru
Russian Federation, Rostov-on-Don, 344006

Y. I. Golovko

Federal Research Center Southern Scientific Center of the Russian Academy of Sciences

Email: mukhortov1944@mail.ru
Russian Federation, Rostov-on-Don, 344006

S. I. Masychev

Federal Research Center Southern Scientific Center of the Russian Academy of Sciences

Email: mukhortov1944@mail.ru
Russian Federation, Rostov-on-Don, 344006

References

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Supplementary files

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2. Fig. 1. Topology of a planar capacitor (VSTC).

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3. Fig. 2. Temperature dependences of residual polarization (P) for samples with different values of the unit cell parameter (c).

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4. Fig. 3. Dependences of controllability coefficients (K) on the strength of the applied bias field (E) for samples with different crystal lattice parameters (c).

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5. Fig. 4. Topology of a phase shifter, the design of which uses planar capacitors based on nanosized Ba0.8Sr0.2TiO3 films.

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