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Description
| - Infrared reflectivity and time-domain terahertz transmission spectra of EuTiO3 ceramics revealed a polar optic phonon at 6-300K whose softening is fully responsible for the recently observed quantum paraelectric behaviour. Even if our EuTiO3 ceramics show lower permittivity than the single crystal due to a reduced density and/or small amount of secondary pyrochlore Eu2Ti2O7 phase, we confirmed a magnetic field dependence of the permittivity, also slightly smaller than in single crystal. An attempt to reveal the soft phonon dependence at 1.8K on the magnetic field up to 13T remained below the accuracy of our infrared reflectivity experiment.
- Infrared reflectivity and time-domain terahertz transmission spectra of EuTiO3 ceramics revealed a polar optic phonon at 6-300K whose softening is fully responsible for the recently observed quantum paraelectric behaviour. Even if our EuTiO3 ceramics show lower permittivity than the single crystal due to a reduced density and/or small amount of secondary pyrochlore Eu2Ti2O7 phase, we confirmed a magnetic field dependence of the permittivity, also slightly smaller than in single crystal. An attempt to reveal the soft phonon dependence at 1.8K on the magnetic field up to 13T remained below the accuracy of our infrared reflectivity experiment. (en)
- Infračervená odrazivost a terahertzová transmisní spektra EuTiO3 keramiky ukázaly přítomnost polárního optického fononu v rozmezí teplot 6-300 K, jehož změkčení způsobuje nedávno pozorované kvantově paraelektrické chování. Přestože náše EuTiO3 keramika vykazuje nižší permitivitu než monokrystal kvůli nižší hustotě anebo přítomnosti malého množství sekundární pyrochlorové Eu2Ti2O7 fáze, potvrdili jsme závislost permitivity na magnetickém poli, také o něco nižší než u monokrystalu. (cs)
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Title
| - Magnetodielectric effect and optic soft mode behaviour in quantum paraelectric EuTiO3 ceramics
- Megnetodielektrický efekt a chování optického měkkého módu v paraelektrické EuTiO3 keramice (cs)
- Magnetodielectric effect and optic soft mode behaviour in quantum paraelectric EuTiO3 ceramics (en)
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skos:prefLabel
| - Magnetodielectric effect and optic soft mode behaviour in quantum paraelectric EuTiO3 ceramics
- Megnetodielektrický efekt a chování optického měkkého módu v paraelektrické EuTiO3 keramice (cs)
- Magnetodielectric effect and optic soft mode behaviour in quantum paraelectric EuTiO3 ceramics (en)
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skos:notation
| - RIV/00216305:26210/07:PU73327!RIV08-MSM-26210___
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http://linked.open.../vavai/riv/strany
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http://linked.open...avai/riv/aktivita
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http://linked.open...avai/riv/aktivity
| - P(GA202/06/0403), P(OC 101), P(OC 102), Z(AV0Z10100520)
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http://linked.open...iv/cisloPeriodika
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http://linked.open...vai/riv/dodaniDat
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http://linked.open...aciTvurceVysledku
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http://linked.open.../riv/druhVysledku
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http://linked.open...iv/duvernostUdaju
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http://linked.open...titaPredkladatele
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http://linked.open...dnocenehoVysledku
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http://linked.open...ai/riv/idVysledku
| - RIV/00216305:26210/07:PU73327
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http://linked.open...riv/jazykVysledku
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http://linked.open.../riv/klicovaSlova
| - Magnetomechanical and magnetoelectric effects, Magnetostriction, Infrared and Raman spectra, Phonons in crystal lattices (en)
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http://linked.open.../riv/klicoveSlovo
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http://linked.open...odStatuVydavatele
| - FR - Francouzská republika
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http://linked.open...ontrolniKodProRIV
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http://linked.open...i/riv/nazevZdroje
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http://linked.open...in/vavai/riv/obor
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http://linked.open...ichTvurcuVysledku
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http://linked.open...cetTvurcuVysledku
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http://linked.open...vavai/riv/projekt
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http://linked.open...UplatneniVysledku
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http://linked.open...v/svazekPeriodika
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http://linked.open...iv/tvurceVysledku
| - Kamba, Stanislav
- Šantavá, Eva
- Knížek, Karel
- Vaněk, Přemysl
- Petzelt, Jan
- Savinov, Maxim
- Maca, Karel
- Shen, Zhijian
- Nuzhnyy, Dimitry
- Sadowski, Marcin
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http://linked.open...n/vavai/riv/zamer
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issn
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number of pages
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http://localhost/t...ganizacniJednotka
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