Publications
A. Razumnaya, Y. Tikhonov, V.M. Vinokur, I. Luk'yanchuk. Ferroelectric topologically configurable multilevel logic unit. Neuromorph. Comput. Eng. 3, 024003 (2023).
A. Lakouader, Y. Hadouch, D. Mezzane, V. Laguta, V.O. Dolocan, N. Novak, L. Hajji, A. Razumnaya, A. Alimoussa, Z. Kutnjak, I.A. Luk'yanchuk. Impact of polymeric precursor and auto-combustion on the structural, microstructural, magnetic, and magnetocaloric properties of La0.8Sr0.2MnO3. J. Magn. Magn. Mater. 586, 171225 (2023).
S. Kondovych, M. Pavlenko, Y. Tikhonov, A. Razumnaya, I. Luk'yanchuk. Vortex states in a PbTiO3 ferroelectric cylinder. SciPost Phys. 14, 056 (2023).
A.S. Konstantinov, E.D. Linnik, A.G. Razumnaya, A.S. Mikheykin. Lattice dynamics and phase transitions peculiarities of BaSrTiO solid solutions with high Sr content. Phys. B: Cond. Mat. 654, 414709 (2023).
Y. Tikhonov, J.R. Maguire, C.J. McCluskey, J.P.V. McConville, A. Kumar, H. Lu, D. Meier, A. Razumnaya, J.M. Gregg, A. Gruverman, V.M. Vinokur, I. Luk'yanchuk. Polarization Topology at the Nominally Charged Domain Walls in Uniaxial Ferroelectrics. Advanced Materials 3(45), 2203028 (2022).
M. Zahid, Y. Hadouch, M. Amjoud, D. Mezzane, M. Gouné, K. Hoummada, A. Alimoussa, A.G. Razumnaya, B. Rožič & Z. Kutnjak. Enhanced near-ambient temperature energy storage and electrocaloric effect in the lead-free BaTi0.89Sn0.11O3 ceramic synthesized by sol–gel method. J. Materials Science: Materials in Electronics 33, 12900 (2022).
M.A. Pavlenko, F. Di Rino, L. Boron, S. Kondovych, An. Sené, Y.A. Tikhonov, A.G. Razumnaya, V.M. Vinokur, M. Sepliarsky, I.A. Lukyanchuk. Phase Diagram of a Strained Ferroelectric Nanowire. Crystals 12(4), 453 (2022).
Y. Hadouch, S.B. Moumen, H. Mezzourh, D. Mezzane, M. Amjoud, B. Asbani, A.G. Razumnaya, Y. Gagou, B. Rožič, Z. Kutnjak, M. El Marssi. Electrocaloric effect and high energy storage efficiency in lead-free Ba0.95Ca0.05Ti0.89Sn0.11O3 ceramic elaborated by sol-gel method. Journal of Materials Science: Materials in Electronics 33, 2067–2079 (2022).
V. B. Shirokov, A.G. Razumnaya, A.S. Mikheykin. Thermodynamic theory of PbxSr1-xTiO3 solid solutions. Journal of Physics and Chemistry of Solids 161, 110395 (2022).
I. Luk'yanchuk, A. Razumnaya, A. Sené, Y. Tikhonov, V. M. Vinokur. The ferroelectric field-effect transistor with negative capacitance. Nature partner journal: npj Computational Materials 8, 52 (2022).
H.Zaitouni, L.Hajji, D.Mezzane, E.Choukri, A.G.Razumnaya, Y.Gagou, K.Hoummada, A.Alimoussa, B.Rožič, D.Črešnar, M.El Marssi, Z.Kutnjak. Enhanced electrocaloric and energy-storage properties of environment-friendly ferroelectric Ba0.9Sr0.1Ti1−xSnxO3 ceramics. Materials Today Communications 31(6), 103351 (2022).
S. Merselmiz, Z. Hanani, U. Prah, D. Mezzane, L. Hajji, Z. Abkhar, M. Spreitzer, D. Vengust, H. Uršič, D. Fabijan, A.G. Razumnaya, O. Shapovalova, I.A. Luk'yanchuk, Z. Kutnjak. Design of lead-free BCZT-based ceramics with enhanced piezoelectric energy harvesting performances. Physical Chemistry Chemical Physics 24, 6026-6036 (2022).
M.A. Pavlenko, Y.A. Tikhonov, A.G. Razumnaya, V.M. Vinokur, I.A. Lukyanchuk. Temperature Dependence of Dielectric Properties of Ferroelectric Heterostructures with Domain-Provided Negative Capacitance. Nanomaterials 12(1), 75 (2022).
E.D. Linnik, A.S. Mikheykin, D. Rubi, V.B. Shirokov, D. Mezzane, S.V. Kondovych, I.A. Lukyanchuk, A.G. Razumnaya. Raman Response of Quantum Critical Ferroelectric Pb-Doped SrTiO3. Crystals 11(12), 1469 (2021).
E.D. Linnik, I.A. Lukyanchuk, A.S. Mikheykin, A.V. Ragulya, B.P. Gorshunov, L.A. Alyabyeva, S.S. Zhukov, D. Mezzane, A.G. Razumnaya. Crystal Structure and the Spectral Response of the Ba‐Doped SrTiO3 Incipient Ferroelectrics. Physica Status Solidi B 258(7), 2100010 (2021).
S. Merselmiz, Z. Hanani, D. Mezzane, A.G. Razumnaya, M. Amjoud, L. Hajji, S. Terenchuk, B. Rozic, I.A. Luk'yanchuk, Z. Kutnjak. Thermal stability of the enhanced piezoelectric, energy storage and electrocaloric properties of a lead-free BCZT ceramic. RSC Advances 10, 30746 (2021).
V.B. Shirokov, A.G. Razumnaya and A.S. Mikheykin. Ferromagnetoelectric phases of hexaferrites: a group-theoretical analysis. Acta Cryst. B 77, 740-748 (2021).
A.S. Mikheykin, V.B. Shirokov, M. El Marssi, D. Mezzane, N.V. Lyanguzov, A.V. Pavlenko, D.V. Stryukov, A.G. Razumnaya. Twin-boundary engineering and thickness effect on strontium-barium niobate thin films on MgO substrate. Journal of Alloys and Compounds 888, 161589 (2021).
V.B. Shirokov, P.E. Timoshenko, A.V. Pan’kin, A.G. Razumnaya. Tunable electromechanical properties of a barium strontium titanate ferroelectric film under an uniaxial stress. IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control 67(12), 2704 (2020).
S. Merselmiz, Z. Hanani, D. Mezzane, M. Spreitzer, A. Bradeško, D. Fabijan, D. Fabijan, D. Vengust, M’Barek Amjoud, L. Hajji, Z. Abkhar, A.G. Razumnaya, B. Rožič, I.A. Luk'yanchuk, Z. Kutnjak. High energy storage efficiency and large electrocaloric effect in lead-free BaTi0.89Sn0.11O3 ceramic. Ceramics International 46 (15), 23867-23876 (2020).
Y. Tikhonov, S. Kondovych, J. Mangeri, M. Pavlenko, L. Baudry, A. Sené, A. Galda, S. Nakhmanson, O. Heinonen, A. Razumnaya, I. Luk’yanchuk, V.M. Vinokur. Controllable skyrmion chirality in ferroelectrics. Scientific reports (Nature Publishing Group) 10 (1), 8657 (2020).
I. Luk’yanchuk, Y. Tikhonov, A. Razumnaya, V.M. Vinokur. Hopfions emerge in ferroelectrics. Nature communications 11 (1), 2433 (2020).
Z. Hanani, D. Mezzane, M. Amjoud, Y. Gagou, K. Hoummada, C. Perrin, A.G. Razumnaya, Z. Kutnjak, A. Bouzina, M. El Marssi, M. Gouné, B. Rožič. Structural, dielectric, and ferroelectric properties of lead‑free BCZT ceramics elaborated by low‑temperature hydrothermal processing. Journal of Materials Science: Materials in Electronics 31 (13), 10096-10104 (2020).
A.G. Razumnaya, A.S. Mikheykin, D.V. Stryukov, A.S. Anokhin, A.V. Pavlenko, V.B. Shirokov, M.A. Kaliteevski, D. Mezzane, I. Lukyanchuk. Built-in electric field induces polarization rotation in bilayer BiFeO3/(Ba,Sr)TiO3 thin films. Journal of Alloys and Compounds 812, 152164 (2020).
V.B. Shirokov, A.G. Razumnaya. Soft modes behavior in bilayer (Ba,Sr)TiO3/(Ba,Sr)TiO3 heterostructures. Ferroelectrics 567(1), 102-112 (2020).
A.S. Anokhin, A.G. Razumnaya, A.V. Pavlenko. Lattice dynamics of strontium ferrotungsten at temperature range of 300-700 K. Physics of the Solid State 62(12), 2169-2173 (2020).
E.D. Gor’kovaya, Yu.A. Tikhonov, V.I. Torgashev, A.S. Mikheykin, I.A. Lukyanchuk, D. Mezzane, N. Ortega, A. Kumar, R.S. Katiyar, A.G. Razumnaya. Properties of the low-frequency phonon spectra of ferroelectric barium titanate-based heterostructures. Ferroelectrics 543 (1), 36-47 (2019).
I. Lukyanchuk, E. Zaitseva, V. Levashenko, M. Kvassay, S. Kondovych, Yu. Tikhonov, L. Baudry, A. Razumnaya. Ferroelectric multiple-valued logic units. Ferroelectrics 543 (1), 213-221 (2019).
I. Lukyanchuk, Y. Tikhonov, A. Sené, A. Razumnaya & V. M. Vinokur. Harnessing ferroelectric domains for negative capacitance. Communications Physics (Nature Publishing Group) 2, 22 (2019).
Z. Hanani, D. Mezzane, M. Amjoud, A.G. Razumnaya, S. Fourcade, Y. Gagou, K. Hoummada, M. El Marssi, M. Gouné. Phase transitions, energy storage performances and electrocaloric effect of the lead-free Ba0.85Ca0.15Zr0.10Ti0.90O3 ceramic relaxor. J. Materials Science: Materials in Electronics 30 (7), 6430-6438 (2019).
Z. Hanani, D. Mezzane, M. Amjoud, S. Fourcade, A.G. Razumnaya, I.A. Luk'yanchuk, M. Gouné. Enhancement of dielectric properties of lead-free BCZT ferroelectric ceramics by grain size engineering. Superlattices and Microstructures 127, 109-117 (2019).
V.B. Shirokov, A.G. Razumnaya and Yu.I. Yuzyuk. Tunable pyroelectric properties of barium strontium titanate thin films. J. Phys.: Cond. Matt. 29, 185701 (2017).
V.G. Trotsenko, A.S. Mikheykin, V.B. Shirokov, A.G. Razumnaya, M. El Marssi, B.P. Gorshunov, A.A. Bush, V.I. Torgashev. Invar effect accompanying charge order in La0.25Ca0.75MnO3. Solid State Sci. 72, 144 (2017).
D.V. Stryukov, A.G. Razumnaya, Yu.I. Golovko, A.S. Anokhin, I.A. Lukyanchuk, V.B. Shirokov, V.M. Mukhortov. Lattice dynamics and structural distortions in the multiferroic (Ba,Sr)TiO3/(Bi,Nd)FeO3 heterostructures. Thin Solid Films 636, 220 (2017).
Yu.A. Tikhonov, I.N. Zakharchenko, A.G. Razumnaya, Yu.I. Yuzyuk, Sh. Pavunny, N. Ortega, A. Kumar, and R.S. Katiyar. A comparative X-ray diffraction study of ferroelectric thin films and superlattices. Ferroelectrics 508, 138 (2017).
A.G. Razumnaya, A.S. Mikheykin, I.A. Lukyanchuk, V.B. Shirokov, Yu.I. Golovko, V.M. Mukhortov, M. El Marssi, Yu.I. Yuzyuk. Unexpectedly high Curie temperature in weakly strained ferroelectric film. Phys. Status Solidi B 254(4), 1600413 (2017).
V.B. Shirokov, A.G. Razumnaya, Yu. I. Yuzyuk. Induced pyroelectric effect in a planar field. Physics of the Solid State. 59(5), 914-919 (2017).
A.G. Razumnaya, Yu.I. Yuzyuk, I.N. Zakharchenko, Yu.A. Tikhonov, N. Ortega, A. Kumar, R.S. Katiyar, M. El Marssi, and I.A. Lukyanchuk. Phase transition in ferroelectric BaTiO3/SrTiO3 superlattice: Raman spectroscopy studies. Ferroelectrics 501, 1-9 (2016).
A.S. Anokhin, A.G. Razumnaya, Yu.I. Yuzyuk, Yu.I. Golovko, V.M. Mukhortov. Phase transitions in barium-strontium titanate films on MgO substrates with various orientations. Physics of the Solid State 58(10), 2027-2034 (2016).
Yu.A. Tikhonov, A.G. Razumnaya, V.I. Torgashev, I.N. Zakharchenko, Yu.I. Yuzyuk, M. El Marssi, N. Ortega, A. Kumar, R.S. Katiyar. Emergence of the sub-THz central peak at phase transitions in artificial BaTiO3/(Ba,Sr)TiO3 superlattices. Physica Status Solidi RRL 9(1), 68-71 (2015).
Yu.A. Tikhonov, A.G. Razumnaya, O.A. Maslova, I.N. Zakharchenko, Yu.I. Yuzyuk, N. Ortega, A. Kumar, and R.S. Katiyar. Phase transitions in two- and three-component perovskite superlattices. Physics of the Solid State 57(3), 486-490 (2015).
L. Baudry, I.A. Luk’yanchuk, A. Razumnaya. Dynamics of field-induced polarization reversal in thin strained perovskite ferroelectric films with c-oriented polarization. Phys. Rev. B. 91, 144110 (2015).
A.G. Razumnaya, Yu.A. Tikhonov, Yu.I. Yuzyuk, I.N. Zakharchenko, V.I. Torgashev, N. Ortega, A. Kumar, R.S. Katiyar, M. El Marssi, I.A. Lukyanchuk Coexistence of the soft mode and sub-THz central peak in ferroelectric BaTiO3/(Ba,Sr)TiO3 superlattices. Superlattices and Microstructure 87, 19-24 (2015).
A.G. Razumnaya, Yu.I. Golovko, N.V. Lyanguzov, Yu.I. Yuzyuk, V.B. Shirokov, V.M. Mukhortov, and M. El Marssi. Ferroelectric superlattice based on barium-strontium titanate solid solutions. Physics of the Solid State 57(11), 2246 (2015).
V.B. Shirokov, R.A. Shakhovoy, A.G. Razumnaya and Yu.I. Yuzyuk. Phenomenological theory of phase transitions in epitaxial BaxSr1−xTiO3 thin films on (111)-oriented cubic substrates. Journal of Applied Physics 118, 024101 (2015).
A.S. Anokhin, Yu.I. Yuzyuk, N.V. Lyanguzov, A.G. Razumnaya, D.V. Stryukov, O.A. Bunina, Yu.I. Golovko, V.B. Shirokov, V.M. Mukhortov, M. El Marssi. Direct transition from the rhombohedral ferroelectric to the paraelectric phase in (Ba,Sr)TiO3 thin film on (111)MgO substrate. Europhys. Lett. 112, 47001 (2015).
G. Khabiri, A.S. Anokhin, A.G. Razumnaya, Yu.I. Yuzyuk, I. Gueye, B. Carcan, H. Bouyanfif, J. Wolfman, C. Autret-Lambert, and M. El Marssi. Phonon and magnon excitations in Raman spectra of an epitaxial bismuth ferrite film. Physics of the Solid State 56(12), 2507-2513 (2014).
P.Yu. Teslenko, A.G. Razumnaya, V.O. Ponomarenko, A.G. Rudskaya, A.V. Nazarenko, A. S. Anokhin, M.V. Avramenko, D.I. Levshov, M.F. Kupriyanov, and Yu.I. Yuzyuk. Structure and lattice dynamics of solid solutions (1-x)BiFeO3 – xANbO3 (A = K, Na). Physics of the Solid State 56(9), 1866-1871 (2014).
A.S. Mikheykin, E.S. Zhukova, V.I. Torgashev, A.G. Razumnaya, Y.I. Yuzyuk, B.P. Gorshunov, A.S. Prokhorov, A.E. Sashin, A.A. Bush, and M. Dressel. Lattice anharmonicity and polar soft mode in ferrimagnetic M-type hexaferrite BaFe12O19 single crystal. Eur. Phys. J. B 87, 232 (2014).
A.S. Anokhin, A.G. Razumnaya, V.I. Torgashev, V.G. Trotsenko, Yu.I. Yuzyuk, A.A. Bush, V.Ya. Shkurato, B.P. Gorshunov, E.S. Zhukova, L.S. Kadyrov, and G.A. Komandin. Dynamic Spectral Response of Solid Solutions of the Bismuth-Strontium Ferrite Bi1–xSrxFeO3–δ in the Frequency Range 0.3-200 THz. Physics of the Solid State 55, №7, 1417-1430 (2013).
A. Razumnaya, Y. Gagou, H. Bouyanfif, B. Carcan, B. Allouche, J. Wolfman, C. Autret-Lambert, M. El Marssi, D. Mezzane, I. Luk’yanchuk. Resistive Switching Hysteresis in Thin Films of Bismuth Ferrite. Ferroelectrics 444, 183-189 (2013).