Uliana Yakhnevych

Forschungszentrum Energiespeichertechnologien — Germany

Physics and Astronomy · Physical Sciences

8h-index160citations42works3.12yr avg
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Research Topics

Photorefractive and Nonlinear Optics(31), Ferroelectric and Piezoelectric Materials(17), Optical and Acousto-Optic Technologies(11), Microwave Dielectric Ceramics Synthesis(7), Acoustic Wave Resonator Technologies(6)

Publications42 total

Oxygen partial pressure dependent acoustic loss in piezoelectric LiNbO3 resonators at 700 °C
Journal of Materials Science Materials in Energy·2025Open Access
Demonstration of domain wall current in MgO-doped lithium niobate single crystals up to 400 <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si4.svg" display="inline" id="d1e383"> <mml:mrow> <mml:mo>°</mml:mo> <mml:mi mathvariant="normal">C</mml:mi> </mml:mrow> </mml:math>
Solid State Ionics·2025· 2 citedOpen Access
Compositional changes in Ca3TaGa3Si2O14 single crystals upon high-temperature reducing treatment
Journal of materials research/Pratt's guide to venture capital sources·2025Open Access
A5.2 - Electro-acoustic Properties of Li(Nb,Ta)O3 Solid Solutions in Harsh Environments
Lectures·2025Open Access
Acoustic Loss in LiNb<sub>1−<i>x</i></sub>Ta<sub><i>x</i></sub>O<sub>3</sub> at Temperatures up to 900 °C
physica status solidi (a)·2024· 1 citedOpen Access
Influence of Li‐Stoichiometry on Electrical and Acoustic Properties and Temperature Stability of Li(Nb,Ta)O<sub>3</sub> Solid Solutions up to 900 °C
physica status solidi (a)·2024· 3 citedOpen Access
Ferroelectric to paraelectric structural transition in <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msub><mml:mi>LiTaO</mml:mi><mml:mn>3</mml:mn></mml:msub></mml:math> and <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msub><mml:mi>LiNbO</mml:mi><mml:mn>3</mml:mn></mml:msub></mml:math>
Physical Review Materials·2024· 6 cited
High-temperature domain wall current in Mg-doped lithium niobate single crystals up to 400°C
arXiv (Cornell University)·2024Open Access
Ferroelectric to paraelectric structural transition in LiTaO$_3$ and LiNbO$_3$
arXiv (Cornell University)·2024· 1 citedOpen Access
Influence of Li-stoichiometry on electrical and acoustic properties and temperature stability of Li(Nb,Ta)O$_{3}$ solid solutions up to 900 °C
arXiv (Cornell University)·2024Open Access
Oxygen partial pressure and temperature dependent electrical conductivity of lithium-niobate-tantalate solid solutions
Solid State Ionics·2024· 15 citedOpen Access
Gap-Free Tuning of Second and Third Harmonic Generation in Mechanochemically Synthesized Nanocrystalline LiNb1−xTaxO3 (0 ≤ x ≤ 1) Studied with Nonlinear Diffuse Femtosecond-Pulse Reflectometry
Nanomaterials·2024· 9 citedOpen Access
High-Temperature Electromechanical Properties Single Crystalline Lithium Niobate-Lithium Tantalate Solid Solutions at Different Oxygen Partial Pressures
ECS Meeting Abstracts·2023
Mechanosynthesis, Structure and Photoluminescent Properties of the Pr3+ Doped LiNbO3, LiNbO3:Mg, LiTaO3 Nanopowders
Powders·2023· 3 citedOpen Access
Electrical properties and temperature stability of Li-deficient and near stoichiometric Li(Nb,Ta)O3 solid solutions up to 900 °C
Solid State Ionics·2023· 10 cited
Li self-diffusion and ion conductivity in congruent <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msub><mml:mi>LiNbO</mml:mi><mml:mn>3</mml:mn></mml:msub></mml:math> and <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msub><mml:mi>LiTaO</mml:mi><mml:mn>3</mml:mn></mml:msub></mml:math> single crystals
Physical Review Materials·2023· 17 cited
Charge transport and acoustic loss in lithium niobate-lithium tantalate solid solutions at temperatures up to 900 °C
Solid State Ionics·2023· 16 cited
Optical study and simulation of diffusion of copper ions in the linbo3 crystal
Computational Problems of Electrical Engineering·2022Open Access
Investigation of the Interface of Y<sub>3</sub>Fe<sub>5</sub>O<sub>12</sub>/Gd<sub>3</sub>Ga<sub>5</sub>O<sub>12</sub> Structure Obtained by the Liquid Phase Epitaxy
Crystal Research and Technology·2022· 7 cited
Excitonic Effects in Low-dimensional Hydrocarbon Systems
2021
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Frequent Co-authors

D. Sugak(26), Oleh Buryy(22), I.I. Syvorotka(21), S. Ubizskii(21), Holger Fritze(20), Yuriy Suhak(18), Steffen Ganschow(11), Harald Schmidt(10), A. Suchocki(10), Yaroslav Zhydachevskyy(9), Stepan Hurskyy(8), Simone Sanna(6), N. Martynyuk(6), Damian Włodarczyk(6), Claudia Kofahl(5), Klaus‐Dieter Becker(5), L. Vasylechko(5), Yu. Suhak(4), Ghanshyam Singh(4), Vijay Janyani(4)