Zobrazeno 1 - 10
of 444
pro vyhledávání: '"L. Jastrabik"'
Publikováno v:
Atti della Accademia Peloritana dei Pericolanti : Classe di Scienze Fisiche, Matematiche e Naturali, Vol 89, Iss S1, Pp C1V89S1P019-1 (2011)
Here we discuss the deficiencies of standard Effective-Medium Approximation in the application to thin layers and propose the model, which overcomes those problems for 2-dimensional case. Ellipsometry of layers of gold nanoparticles reveals the discu
Externí odkaz:
https://doaj.org/article/6e51b6baf64b451b9d3e1a3a6d7eacda
Autor:
D. V. Azamat, A. G. Badalyan, N. G. Romanov, M. Hrabovsky, L. Jastrabik, A. Dejneka, D. R. Yakovlev, M. Bayer
Publikováno v:
Applied Physics Letters. 120:041104
Autor:
A. Tarasenko, L. Jastrabik
Publikováno v:
Phys. Chem. Chem. Phys.. 13:2300-2306
Using kinetic Monte Carlo simulations we have investigated the diffusion of particles over a lattice with moving atoms in the framework of a simple lattice-gas model of a reconstructive surface. The particle migration over the static and dynamic latt
Autor:
Pavel Cevc, S. I. Raevskaya, I. P. Raevski, Maja Remškar, Valentin V. Laguta, Robert Blinc, J. Rosa, L. Jastrabik, Boštjan Zalar
Publikováno v:
Materials Research Bulletin. 45:1720-1727
The 93 Nb NMR and Fe 3+ EPR spectra of a magnetoelectric Pb(Fe 1/2 Nb 1/2 )O 3 (PFN) single crystal as well as of PFN ceramics and nanopowder have been measured. The relation between the chemical disorder and the local magnetic structure has been det
Autor:
L. Jastrabik, A. Tarasenko
Publikováno v:
Applied Surface Science. 256:5137-5144
We present here the results of our investigations of particle diffusion over different heterogeneous lattices with deep and shallow adsorption sites. A general analytical expression for chemical diffusion coefficient has been derived for a number of
Publikováno v:
Integrated Ferroelectrics. 78:45-51
We consider consequences of local disorder in systems experiencing first order phase transitions. Such systems can be of rather different nature. For example, manganates showing gigantic magnetoelectric effect, doped antiferroelectrics or biomembrane
Autor:
Giorgio Samoggia, L. Jastrabik, S. E. Kapphan, E. Giulotto, Francesco Rossella, Pietro Galinetto, P. Syrnkov, V. A. Trepakov
Publikováno v:
physica status solidi (c). 2:184-187
We present the first growth of KTaO3:Be (6% at. in the batch) single crystals, together with photoconductivity and thermally stimulated currents studies of this material. It is probably that very small Be2+ ions (ionic radius ∼0.35 A ) mostly subst
Autor:
L. Jastrabik, J. Rosa, A. G. Badalyan, Maria Cristina Mozzati, Carlo B. Azzoni, M. Hrabovsky, V. A. Trepakov, Pietro Galinetto, S. E. Kapphan
Publikováno v:
physica status solidi (c). 2:141-144
Electron paramagnetic resonance experimental results of potassium tantalate single crystals doped by Co2+ ions as well as new results of our continuous studies of KTaO3:Cu single crystals are presented. Divalent impurity ions substitute for Ta5+ in t
Autor:
R. DEMIRBILEK, A. I., A. B. KUTSENKO, S. E. KAPPHAN, I. P. RAEVSKI, S. A. PROSANDEEV, B. BURTON, L. JASTRABIK, V. S. VIKHNIN
Publikováno v:
Ferroelectrics. 302:279-283
Optical absorption in the IR region has been recorded and first-principles computations have been done for some Fe contining perovskites. The IR absorption reveals a broad peak at about 11000 cm−1. First principles computations established that BaF
Autor:
M. E. Savinov, V. A. Trepakov, S. Kamba, S. E. Kapphan, J. Petzelt, R. Pankrath, I. L. Kislova, A. B. Kutsenko, L. Jastrabik
Publikováno v:
Ferroelectrics. 295:31-38