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Effect of epitaxy on interband transitions in ferroelectric KNbO3.
Very large lattice strain and strain-induced polarization are achieved in KNbO3 using epitaxial growth of a thin KNbO3 film onto a (001)-oriented SrTiO3 single-crystal substrate. We demonstrate experimentally that epitaxy produces d...
Condensed matter physics (including formerly solid state physics, supercond.)
- 2015 •
- Jimp •
- Link
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Jimp - Článek v periodiku v databázi Web of Science
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Stress-free domain quadruplets in ferroics
The problem of the coexistence of ferroelastic domains in KNbO3 is discussed theoretically from the point of view of elastic aspects in domain engineering. Possibilities for the stress-free coexistence of four ferroelastic domains are specif...
BM - Fyzika pevných látek a magnetismus
- 2005 •
- Jx
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Li doping effect on properties and phase transformations of KNbO3.
Dielectric permittivity and infrared reflectivity spectra of Li doped KNbO3 single crystals have been studied for the first time for K1-xLixNbO3 with x = 0.015, 0.02, 0.065. Li doping is accompanied by an increase of the cubic-tetragonal pha...
Condensed matter physics (including formerly solid state physics, supercond.)
- 2007 •
- Jimp
Rok uplatnění
Jimp - Článek v periodiku v databázi Web of Science
Electron spectroscopy and the electronic structure of KNbO3: first principle calculations
The electronic structures of KNbO(3)were calculated within the density functional theory, and their evolution was analyzed as the crystal-field symmetry changes from cubic to rhombohedral via tetragonal phase. We carried out electron-energy loss spec...
Condensed matter physics (including formerly solid state physics, supercond.)
- 2014 •
- Jimp •
- Link
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Jimp - Článek v periodiku v databázi Web of Science
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Elastic aspects of domain quadruplets in ferroics
The problem of the coexistence of ferroelectric ferroelastic domains is discussed theoretically from the point of view of elastic aspects in domain engineering. Conditions for the zero elastic energy of systems of four ferroelastic domains are specif...
BM - Fyzika pevných látek a magnetismus
- 2005 •
- Jx
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Preparation of potassium tantalate thin films through chemical solution deposition
), PbTiO3, PbTiO3-Al2O3 composite, KNbO3 (KN)], and annealing regime on the kinetics, perovskite films have been obtained via insertion of Al2O3 and KNbO3 buffer layers....
CA - Anorganická chemie
- 2004 •
- Jx
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Preparation of potassium tantalate niobate thin films by chemical solution deposition and their characterization
"chemical" buffer layer and KNbO3 seeding layer. Optimum conditions for film preparation to KNbO3 and indicate that the optical axis lies in the plane of the film....
CA - Anorganická chemie
- 2005 •
- Jx
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Lattice dynamics and phase transitions in KNbO3 and K0.5Na0.5NbO3 ceramics
Phonons in both ceramic samples KNbO3 (KN) and K0.5Na0.5NbO3 (KNN-50) were investigated from 10 to 900 K by means of Raman, infrared, and THz spectroscopy. First-order transitions from cubic to tetragonal phases were detected at about 755 K ...
BM - Fyzika pevných látek a magnetismus
- 2009 •
- Jx
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Dielectric relaxation in SrTiO3-based solid solutions with heterovalent substitutions
Temperature dependences of the dielectric permittivity and thermal treatment effect have been studied for (1-x)SrTiO3-(x)KTaO3 and (1-x)SrTiO3-(x)KNbO3 (0 <= x <= 0.2) solid solutions. For low concentrations x, strong dielectric relaxation w...
Condensed matter physics (including formerly solid state physics, supercond.)
- 2014 •
- Jimp •
- Link
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Jimp - Článek v periodiku v databázi Web of Science
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Fundamental Properties of Ferroelectric Domain Walls from Ginzburg–Landau Models
In this chapter, contemporary possibilities, prospects, and limitations of phase-field simulations and Ginzburg–Landau–Devonshire models of domain walls are discussed in detail, focusing on the most-studied ferroelectric oxides BaTiO3, KNbO3...
Condensed matter physics (including formerly solid state physics, supercond.)
- 2020 •
- C •
- Link
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C - Kapitola v odborné knize
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