Enhanced Tunability of BaTixSn1−xO3 Films on Dielectric Substrate
Source abstract
Abstract
The structural properties of ferroelectric films of barium titanate-stannate on alumina substrates and the microwave characteristics of planar capacitive elements based on them are studied. It is established that the composition of the gas medium and the temperature of the substrate during the deposition of the film has a significant effect on the crystal structure, phase composition of the films and their electrical characteristics. Planar capacitors based on films subjected to high-temperature annealing after deposition exhibit 85% tunability at a frequency of 2 GHz, which is the best result for today.
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Research context
OpenAlex topics: Ferroelectric and Piezoelectric Materials · Acoustic Wave Resonator Technologies · Microwave Dielectric Ceramics Synthesis
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Faculty of Electronics, Saint Petersburg Electrotechnical University “LETI”, Professora Popova Str. 5, 197376 Saint Petersburg, Russia
Division of Physics of Dielectrics and Semiconductors, Ioffe Institute, Polytechnicheskaja Str. 26, 194021 Saint Petersburg, Russia
Funding
Russian Foundation for Fundamental Investigations
References (42)
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