E. N. Sapego
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View article: Enhanced Microwave Commutation Quality Factor of Tunable Capacitors Based on SrTiO3 Thin Films
Enhanced Microwave Commutation Quality Factor of Tunable Capacitors Based on SrTiO3 Thin Films Open
Thin films of strontium titanate were grown on a polycrystalline aluminum oxide substrate using magnetron sputtering. These films exhibit high structural quality and nonlinear properties, which make them promising for microwave application…
View article: Theoretical and Experimental Determination of the Thickness of a Metal Film Grown by Magnetron Sputtering at High Discharge Power
Theoretical and Experimental Determination of the Thickness of a Metal Film Grown by Magnetron Sputtering at High Discharge Power Open
A theoretical model is proposed that allows us to describe the processes of formation of the sputtered atom flow, transport of this flow in the target-substrate space and deposition of the substance onto the substrate during magnetron sput…
View article: Enhanced Crystallinity of SrTiO3 Films on a Silicon Carbide Substrate: Structural and Microwave Characterization
Enhanced Crystallinity of SrTiO3 Films on a Silicon Carbide Substrate: Structural and Microwave Characterization Open
Thin films of strontium titanate, which reveal high structure quality and tunable properties prospective for microwave applications at room temperature, were grown on a semi-insulating silicon carbide substrate using magnetron sputtering f…
View article: Correction: Tumarkin et al. Composite Metamaterial: Ferrite Matrix with Ferroelectric Inclusions. Coatings 2023, 13, 117
Correction: Tumarkin et al. Composite Metamaterial: Ferrite Matrix with Ferroelectric Inclusions. Coatings 2023, 13, 117 Open
The authors were not aware of errors made in the proofreading phase, and, hence, wish to make the following corrections to this paper [...]
View article: Enhanced Tunable Properties of Strontium Barium Niobate Films on Dielectric Alumina Substrate at Microwaves
Enhanced Tunable Properties of Strontium Barium Niobate Films on Dielectric Alumina Substrate at Microwaves Open
(Sr,Ba)Nb2O6 (SBN) relaxor ferroelectric thin films exhibiting nonlinear properties promising for microwave applications were grown on a polycrystalline aluminum oxide substrate for the first time. Films of good crystallinity were obtained…
View article: Composite Metamaterial: Ferrite Matrix with Ferroelectric Inclusions
Composite Metamaterial: Ferrite Matrix with Ferroelectric Inclusions Open
A metamaterial based on periodic ferroelectric inhomogeneities in a magnetic ferrite matrix including a quantity of ferroelectric composite in a matrix, demonstrating relative low microwave losses and effective dielectric permittivity, was…
View article: High Tunable BaTixZr1-xO3 Films on Dielectric Substrate for Microwave Applications
High Tunable BaTixZr1-xO3 Films on Dielectric Substrate for Microwave Applications Open
In this study, the structural and microwave properties of BaTiZrO3 films deposited on alumina substrate were investigated. The films were deposited by RF magnetron sputtering in Ar/O2 ambient atmosphere. The research of the island films at…
View article: Structural and Electrical Properties of Glass-Ceramic Ferroelectric Composite Materials
Structural and Electrical Properties of Glass-Ceramic Ferroelectric Composite Materials Open
Introduction . Materials exhibiting high dielectric permittivity are relevant for use in modern ultrahigh-frequency electronics. Among them, ferroelectrics with high dielectric nonlinearity present particular interest. The electrical stren…
View article: Electric Tunable Structures Based on BaZr<sub>x</sub>Ti<sub>1–x </sub>O<sub>3</sub> and BaSn<sub>x</sub>Ti<sub>1–x</sub>O<sub>3</sub> Solid Solutions for Microwave Applications
Electric Tunable Structures Based on BaZr<sub>x</sub>Ti<sub>1–x </sub>O<sub>3</sub> and BaSn<sub>x</sub>Ti<sub>1–x</sub>O<sub>3</sub> Solid Solutions for Microwave Applications Open
Introduction. An experimental study of the structural and electrophysical properties of multicomponent films of solid solutions of barium titanate-zirconate and barium titanate-stannate on sapphire substrates has been carried out. These ma…
View article: Enhanced Tunability of BaTixSn1−xO3 Films on Dielectric Substrate
Enhanced Tunability of BaTixSn1−xO3 Films on Dielectric Substrate Open
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…
View article: Barium-Strontium Titanate/Porous Glass Structures for Microwave Applications
Barium-Strontium Titanate/Porous Glass Structures for Microwave Applications Open
Based on porous silicate glasses obtained by ion exchange, glass-ceramic materials containing a solid solution of barium-strontium titanate with a dielectric constant of more than 100 at microwaves, were synthesized for the first time. Gla…
View article: Heterostructures “Ferroelectric Film/Silicon Carbide” for High Power Microwave Applications
Heterostructures “Ferroelectric Film/Silicon Carbide” for High Power Microwave Applications Open
The ferroelectric barium–strontium titanate (BST) multi-layer structure has been formed directly on silicon carbide by serial deposition and “in situ” annealing of layers. This approach allowed us to achieve the high-quality perovskite lat…