Zobrazeno 1 - 10
of 171
pro vyhledávání: '"V. Železný"'
Publikováno v:
Physical Review B. 107
Autor:
Karel Knížek, V. Goian, V. Železný, F. Borodavka, M. Soroka, Hynek Němec, Christelle Kadlec, Josef Buršík, Jiří Hejtmánek, Martin Kempa
Publikováno v:
Physical Review B. 102
Bulk ceramics and thick nanogranular films of mixed-valence cobaltite ${({\mathrm{Pr}}_{1\ensuremath{-}y}{\mathrm{Y}}_{y})}_{0.7}{\mathrm{Ca}}_{0.3}\mathrm{Co}{\mathrm{O}}_{3}$ were studied using time-domain terahertz transmission spectroscopy and in
Publikováno v:
Materials Science and Engineering: B. 197:10-17
Intraband electronic excitations, phonons, and crystal field transitions of two unique (Nd,Eu,Gd)Ba 2 Cu 3 O y single crystals with different Eu/Gd ratio were studied by Raman spectroscopy. The spectra were measured above and below critical temperatu
Autor:
V. Železný, Dagmar Chvostova, L. Pajasová, Tomáš Kocourek, Miroslav Jelinek, Stanislav Daniš, Václav Valvoda
Publikováno v:
Thin Solid Films. 571:416-419
Optical properties of Ba 0.75 Sr 0.25 TiO 3 (BST(75/25)) ferroelectric thin film have been investigated by spectroscopic ellipsometry in a broad temperature interval from 10 to 300 K. The polycrystalline perovskite-phase BST films were prepared by pu
Publikováno v:
Phase Transitions. 87:929-937
Polarized infrared reflectance of ferroelectric [(BaTiO)/(SrTiO)] superlattices grown on DyScO, TbScO, EuScO and SmScOsubstrates by reactive molecular beam epitaxy was measured. Infrared spectra (30–3000 cm) were taken independently from the (110)
Akademický článek
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Publikováno v:
Physical Review B. 95
Infrared reflectance spectra of the polar optic phonons in a [(BaTiO3)(8)/(SrTiO3)(4)](50) superlattice over the temperature range 8 to 650 K are reported. The spectra exhibit lattice vibration features typical of the perovskite constituents, BaTiO3
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Publikováno v:
Physics Procedia. 36:532-537
ab -plane infrared spectra of two single-crystalline (Nd,Eu,Gd)Ba2Cu3Oy superconductors (NEG-123) with different Gd:Eu ratio were studied. Infrared reflectance was measured between 10 and 300 K at frequencies from 35 to 8000 cm -1 . The experimental
Publikováno v:
Journal of Physics: Condensed Matter
Optical properties of the PbTiO3 thin films fabricated by chemical solution deposition have been measured with variable angle spectroscopic ellipsometry in the spectral range of 1-6 eV and in the temperature interval from room temperature to 950 K. T