University of Opole

output

20002026

most citedDomain enhanced interlayer coupling in ferroelectric/paraelectric superlattices

170 citations

researchers with a paper here

Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.

collaborating institutions

Showing cond-mat.mtrl-sciShow all

23 papers · 1 filter

cond-mat.mtrl-sci2022★ 50 cited

Strain induced quasi-unidimensional channels in twisted moiré lattices

Andreas Sinner, Pierre A. Pantaleón, Francisco Guinea

We study the effects of strain in moiré systems composed of honeycomb lattices. We elucidate the formation of almost perfect one-dimensional moiré patterns in twisted bilayer syste…

cond-mat.mtrl-sci2022★ 5 cited

Electron spectra in double quantum wells of different shapes

Piotr Garbaczewski, Vladimir A. Stephanovich, Grzegorz Engel

We suggest a method for calculating electronic spectra in ordered and disordered semiconductor structures (superlattices) forming double quantum wells (QW). In our method, we repre…

cond-mat.mtrl-sci2021★ 5 cited

Carrier-induced ferromagnetism in 2D magnetically-doped semiconductor structures

V. A. Stephanovich, E. V. Kirichenko, G. Engel +2

We show theoretically that the magnetic ions, randomly distributed in a two-dimensional (2D) semiconductor system, can generate a ferromagnetic long-range order via the RKKY intera…

cond-mat.mtrl-sci2017★ 7 cited

Statistical Reconstruction of Microstructures Using Entropic Descriptors

R. Piasecki, W. Olchawa, D. Frączek +1

We report a multiscale approach of broad applicability to stochastic reconstruction of multiphase materials, including porous ones. The approach devised uses an optimization method…

cond-mat.mtrl-sci2017★ 2 cited

Controlling spatial inhomogeneity in prototypical multiphase microstructures

D. Frączek, R. Piasecki, W. Olchawa +1

A wide variety of real random composites can be studied by means of prototypes of multiphase microstructures with a controllable spatial inhomogeneity. To create them, we propose a…

cond-mat.mtrl-sci2016★ 3 cited

Magnetic resonance study of bulk and thin film EuTiO3

V. V. Laguta, S. Kamba, M. Maryško +5

Magnetic resonance spectra of EuTiO3 in both bulk and thin film form were taken at temperatures from 3-350 K and microwave frequencies from 9.2-9.8 and 34 GHz. In the paramagnetic…

cond-mat.mtrl-sci2016★ 37 cited

Magnetoelectric effect in antiferromagnetic multiferroic Pb(Fe1/2Nb1/2)O3 and its solid solutions with PbTiO3

V. V. Laguta, V. A. Stephanovich, I. P. Raevski +4

Antiferromagnets (AFMs) are presently considered as promising materials for applications in spintronics and random access memories due to the robustness of information stored in AF…

cond-mat.mtrl-sci2016★ 6 cited

Cluster superconductivity in the magnetoelectric Pb(Fe1/2Sb1/2)O3 ceramics

V. V. Laguta, M. Marysko, V. A. Stephanovich +8

We report the observation of cluster (local) superconductivity in the magnetoelectric Pb(Fe1/2Sb1/2)O3 ceramics prepared at a hydrostatic pressure of 6 GPa and temperatures 1200-18…

cond-mat.mtrl-sci2015★ 12 cited

Transversal spin freezing and re-entrant spin glass phase in chemically disordered Fe-contained double perovskite multiferroics

V. A. Stephanovich, V. V. Laguta

We propose experimental verification and theoretical explanation of magnetic anomalies in the complex Fe-contained double perovskite multiferroics like PbFe $_{1/2}$ Nb $_{1/2}$ O $_{3}$ .…

cond-mat.mtrl-sci2015★ 13 cited

Macroscopic description of the two-dimensional LaAlO $_{3}$ /SrTiO $_{3}$ interface

V. A. Stephanovich, V. K. Dugaev

We propose a simple analytical model to explain possible appearance of the metallic conductivity in the two-dimensional (2D) LaAlO $_{3}$ /SrTiO $_{3}$ interface. Our model considers the…

cond-mat.mtrl-sci2013★ 4 cited

The exact solution of the diffusion trapping model of defect profiling with variable energy positrons

V. A. Stephanovich, J. Dryzek

We report an exact analytical solution of so-called positron diffusion trapping model. This model have been widely used for the treatment of the experimental data for defect profil…

cond-mat.mtrl-sci2010★ 4 cited

Tetragonal tungsten bronze compounds: relaxor vs mixed ferroelectric - dipole glass behavior

V. A. Stephanovich

We demonstrate that recent experimental data (E. Castel et al J.Phys. Cond. Mat. {\bf 21} (2009), 452201) on tungsten bronze compound (TBC) Ba $_{2}$ Pr $_{x}$ Nd $_{1 - x}$ FeNb $_{4}$ O $_{15}$ c…

cond-mat.mtrl-sci2008★ 20 cited

Magnetoelectric effect in mixed valency oxides mediated by charge carriers

V. A. Stephanovich, M. D. Glinchuk, R. Blinc

We show that the presence of free carriers in a substance can generate the multiferroic behavior. Namely, if the substance has mixed-valence ions, which can supply free carriers an…

cond-mat.mtrl-sci2004

Depolarization field in thin ferroelectric films with account of semiconductor electrodes

M. D. Glinchuk, B. Y. Zaulychny, V. A. Stephanovich

Within the framework of the phenomenological Ginzburg-Landau theory influence of semiconductor electrodes on the properties of thin ferroelectric films is considered. The contribut…

cond-mat.mtrl-sci2004★ 170 cited

Domain enhanced interlayer coupling in ferroelectric/paraelectric superlattices

V. A. Stephanovich, I. A. Luk'yanchuk, M. G. Karkut

We investigate the ferroelectric phase transition and domain formation in a periodic superlattice consisting of alternate ferroelectric (FE) and paraelectric (PE) layers of nanomet…

cond-mat.mtrl-sci2004★ 7 cited

The nature of an enhanced ferroelectric phase transition temperature in perovskite-based solid solutions

V. A. Stephanovich, M. D. Glinchuk, C. A. Randall

We explain the phenomena of ferroelectric phase transition temperature $T_{c}$ enhancement beyond the end members in perovskite solid solutions like BiMeO $_{3}$ -PbTiO $_{3}$ (Me=Sc, In, e…

cond-mat.mtrl-sci2002★ 5 cited

Effective conductivity in a lattice model for binary disordered media with complex distributions of grain sizes

R. Piasecki

Using numerical simulations and analytical approximations we study a modified version of the two-dimensional lattice model [R. Piasecki,phys. stat. sol. (b) 209, 403 (1998)] for ra…

cond-mat.mtrl-sci2002★ 20 cited

Effective conductivity in association with model structure and spatial inhomogeneity of polymer/carbon black composites

Z. Garncarek, R. Piasecki, J. Borecki +2

The relationship between effective conductivity and cell structure of polyethylene/carbon composites as well as between effective conductivity and spatial distribution of carbon bl…

cond-mat.mtrl-sci2001★ 1 cited

Size effects of pyroelectric coefficient and dielectric susceptibility in ferroelectric thin films

M. D. Glinchuk, E. A. Eliseev, V. A. Stephanovich

We calculate the pyrocoefficient, static dielectric susceptibility profiles and its thickness dependence of ferroelectric thin films. Also, the temperature dependences of above qua…

cond-mat.mtrl-sci2001★ 1 cited

Application of relative configurational entropy as a measure of spatial inhomogeneity to Co/C film evolving along the temperature

Z. Garncarek, T. Majcherczyk, D. Potoczna-Petru +1

Based on the digitized electron micrographs, we investigate a temperature evolution of Co/C film. The simple in usage quantitative characterization of the spatial disorder for syst…

cond-mat.mtrl-sci2000★ 2 cited

Random field based model of mixed ferroelectrics phase diagram

M. D. Glinchuk, E. A. Eliseev, V. A. Stephanovich +1

The equations for phase transitions temperatures, order parameters and critical concentrations of components have been derived for mixed ferroelectrics. The electric dipoles random…

cond-mat.mtrl-sci2000

Phase diagram of mixed system of ferroelectric relaxors in the random field theory framework