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 2015Show all

13 papers · 1 filter

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 $_{3}$ .…

cs.NI2015★ 2 cited

Maximum lifetime broadcasting problem in sensor networks

Zbigniew Lipiński

We solve the maximum lifetime problem for the point-to-point and point-to-multipoint broadcast data transmission in one dimensional regular sensor network. Based on the analytical…

cond-mat.str-el2015★ 9 cited

Two-dimensional electron gas at the LaAlO $_{3}$ /SrTiO $_{3}$ inteface with a potential barrier

V. A. Stephanovich, V. K. Dugaev, J. Barnaś

We present a tight binding description of electronic properties of the interface between LaAlO $_{3}$ (LAO) and SrTiO $_{3}$ (STO). The description assumes LAO and STO perovskites as set…

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.str-el2015★ 6 cited

Quasi-one-dimensional quantum spin liquid in the $Cu (C_{4} H_{4} N_{2}) (N O_{3})_{2}$ insulator

V. R. Shaginyan, V. A. Stephanovich, K. G. Popov +1

We analyze measurements of the magnetization, differential susceptibility and specific heat of quasi-one dimensional insulator Cu(C $_{4}$ H $_{4}$ N $_{2}$ )(NO $_{3}$ ) $_{2}$ (CuPzN) subjected to…

astro-ph.GA2015★ 8 cited

The distribution of galaxies gravitational field stemming from their tidal interaction

Vladimir Stephanovich, Wlodzimierz Godlowski

We calculate the distribution function of astronomical objects (like galaxies and/or smooth halos of different kinds) gravitational fields due to their tidal in- teraction. For tha…

cond-mat.stat-mech2015★ 1 cited

Entropic descriptor based reconstruction of three-dimensional porous microstructures using a single cross-section

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

The simple entropic method to statistical reconstructing of heterogeneous three-dimensional media from a single two-dimensional image is briefly reported. We apply the entropic des…

math.DG2015

Homogeneous Weyl connections of non-positive curvature

Gabriela Tereszkiewicz, Maciej P. Wojtkowski

We study homogenous Weyl connections with non-positive sectional curvatures. The Cartesian product $S^{1} \times M$ carries canonical families of Weyl connections with such a…

cond-mat.stat-mech2015★ 6 cited

On multi-scale percolation behaviour of the effective conductivity for the lattice model with interacting particles

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

Recently, the effective medium approach using 2x2 basic cluster of model lattice sites to predict the conductivity of interacting droplets has been presented by Hattori et al. To m…

astro-ph.SR2015★ 21 cited

Pressure Shift and Gravitational Red Shift of Balmer Lines in White Dwarfs. Rediscussion

J. Halenka, W. Olchawa, J. Madej +1

The Stark-induced shift and asymmetry, the so-called pressure shift (PS) of $H_{α}$ and $H_{β}$ Balmer lines in spectra of DA white dwarfs (WDs), as masking effects in measurements of…

cond-mat.str-el2015★ 10 cited

Heavy fermion spin liquid in herbertsmithite

V. R. Shaginyan, M. Ya. Amusia, A. Z. Msezane +2

We analyze recent heat capacity measurements in herbertsmithite $ZnC u_{3} (OH)_{6} C l_{2}$ single crystal samples subjected to strong magnetic fields. We show that the temperature depe…

math-ph2015★ 5 cited

Ultrarelativistic (Cauchy) spectral problem in the infinite well

Elena V. Kirichenko, Piotr Garbaczewski, Vladimir Stephanovich +1

We analyze spectral properties of the ultrarelativistic (Cauchy) operator $∣Δ ∣^{1/2}$ , provided its action is constrained exclusively to the interior of the interval $[-1,1] \subse…

math-ph2015★ 12 cited

Nonlocally-induced (fractional) bound states: Shape analysis in the infinite Cauchy well

Mariusz Żaba, Piotr Garbaczewski

Fractional (Lévy-type) operators are known to be spatially nonlocal. This becomes an issue if confronted with a priori imposed exterior Dirichlet boundary data. We address spectral…