Dielectric and phonon spectroscopy of Nb-doped Pb(Zr1-yTiy)O3-CoFe2O4 composites

Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F17%3A00476201" target="_blank" >RIV/68378271:_____/17:00476201 - isvavai.cz</a>
Výsledek na webu
<a href="http://dx.doi.org/10.1063/1.4984199" target="_blank" >http://dx.doi.org/10.1063/1.4984199</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1063/1.4984199" target="_blank" >10.1063/1.4984199</a>

Jazyk výsledku
angličtina
Název v původním jazyce
Dielectric and phonon spectroscopy of Nb-doped Pb(Zr1-yTiy)O3-CoFe2O4 composites
Popis výsledku v původním jazyce
A strong Maxwell-Wagner relaxation process dominates below 1 GHz due to the conductivity of CoFe2O4. Two additional relaxation processes are seen between 1 GHz and 1 THz. The lower-frequency one, coming from domain wall motion, disappears above TC ≈ 650 K. The higher-frequency component slows down on heating towards TC, because it is the central mode, which drives the ferroelectric phase transition. Similar temperature behavior of phonons as in the pure PZTN and CF was observed. Like in the pure Pb(Zr,Ti)O3, the soft phonon and central modes were also observed.
Název v anglickém jazyce
Dielectric and phonon spectroscopy of Nb-doped Pb(Zr1-yTiy)O3-CoFe2O4 composites
Popis výsledku anglicky
A strong Maxwell-Wagner relaxation process dominates below 1 GHz due to the conductivity of CoFe2O4. Two additional relaxation processes are seen between 1 GHz and 1 THz. The lower-frequency one, coming from domain wall motion, disappears above TC ≈ 650 K. The higher-frequency component slows down on heating towards TC, because it is the central mode, which drives the ferroelectric phase transition. Similar temperature behavior of phonons as in the pure PZTN and CF was observed. Like in the pure Pb(Zr,Ti)O3, the soft phonon and central modes were also observed.

Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Projekt
<a href="/cs/project/GA15-08389S" target="_blank" >GA15-08389S: Dielektrická a fononová spektroskopie multiferoik</a><br>
Návaznosti
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění
2017
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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