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Infrared spectroscopy of KTa1-xNbxO3 crystals
Fourier-transform infrared and time-domain THz dielectric spectroscopy measurements on KTa1-xNbxO3 crystals for x=0.018 and 0.022 were performed. The temperature behaviour of the soft mode frquency and damping have been det...
BM - Fyzika pevných látek a magnetismus
- 2005 •
- Jx
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Photochromism and polaronic photocharge localization in diluted KTa1-xNbxO3.
Ultraviolet-light-induced optical absorption in the near infrared region was observed in KTa1-xNbxO3single crystals at low temperatures.The photochromic experimental data, supplemented by luminescence studies in the visible range, e...
BM - Fyzika pevných látek a magnetismus
- 2006 •
- Jx
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Photo-EPR studies of KTN-1.2: Evidences of the Nb4.+-O- polaronic excitons
Strongly anisotropic photoinduced electron paramagnetic resonance spectrum was found in the KTa1-xNbxO3 crystals with x = 0.012 at T < 10 K, which is described well within the model of the center with S = 1, gparallel = 0.8...
Optics (including laser optics and quantum optics)
- 2012 •
- Jimp •
- Link
Rok uplatnění
Jimp - Článek v periodiku v databázi Web of Science
Výsledek na webu
Low temperature structural transformations of dilute KTa1-xNbxO3: x = 0.018, quantum superparaelekctric or reentrant glass scenario ?
Impurity induced structural transformations are studied for KTa1-xNbxO3: x = 0.018,(KTN-1.8) by low-frequency linear and non-linear dielectric spectroscopy techniques. Nb admixture leads to the appearance of a sharp maximum of diele...
BM - Fyzika pevných látek a magnetismus
- 2005 •
- Jx
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
The sequence of structural phase transitions in KTa1-xNbxO3.
Annotation not available...
BE - Teoretická fyzika
- 1996 •
- Jx
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
UV light-Induced IR absorption and photoconductivity in KTa1-xNbxO3.
Observation and studies of the UV light-induced optical absorption for KTa1-xNbxO3 materials ( x=0.004, 0.007, 0.012, 0.070 ) are reported.Under illumination (300-400 nm) at low temperatures a broad light-induced absorption band was...
BM - Fyzika pevných látek a magnetismus
- 2006 •
- Jx
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Low-temperature phase transformations in weakly doped quantum paraelectric:novel features and quantum reentrant dipolar glass in KTa0.982Nb0.018.O3.
An usual sequence of phase transitions (PT) and reentrant diplo glass-like phase formation at low temperatures was found recently in KTaO3 weakly doped with Lu and Nb. We report on detailed low frquency (100 Hz-1MHz) permittivity and Raman light scat...
BM - Fyzika pevných látek a magnetismus
- 2004 •
- Jx
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
High-temperature stability, structure and thermoelectric propertiesof CaMn1-xNbxO3 phases
Polycrystalline perovskite-type CaMn1-xNbxO3 phases (with x = 0.02, 0.05, 0.08 and 0.10) were investigated with regard to their structure, microstructure and thermal stability as a function of temperature. A possible mechanism relating the h...
BM - Fyzika pevných látek a magnetismus
- 2009 •
- Jx
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Method of manufacturing of a crystal for a scintillation crystal detector and a crystal for a scintillation crystal detector
crystals of the general composition CexGdyY1-x-yAlO3 for crystal scintillation laboratory crystals. The use of the Czochralski growth method will enable the mass production of large crystals. The invention can mai...
Condensed matter physics (including formerly solid state physics, supercond.)
- 2023 •
- P •
- Link
Rok uplatnění
P - Patent
Výsledek na webu
Study of microsegregations of alloying elements in tungsten and molybdenum single crystals during the electron beam zone melting
The growth of single crystals from melts may be accompanied by creating by the conditions of crystallization and the crystal chemical composition. A periodical variation of the crystallization rate happens under ce...
JG - Hutnictví, kovové materiály
- 2006 •
- D
Rok uplatnění
D - Stať ve sborníku
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