About: Polar lattice vibrations and phase transition dynamics in Pb(Zr1-xTix)O3.

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About: Polar lattice vibrations and phase transition dynamics in Pb(Zr1-xTix)O3. Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Infrared (IR) reflectivity spectra of nominally pure Pb(Zr1-xTix)O3 ceramics with different Ti/Zr concentration (x = 0.42 – 0.58) were measured and evaluated along with the time-domain THz transmittance spectra in the temperature range 10 – 900 K. The temperature dependence of the low-frequency vibrations, related to Pb atoms, was analyzed in terms of two overdamped modes –a soft mode and an anharmonic hopping central mode– in the cubic and high-temperature ferroelectric phase, and three main vibrations in the low-temperature ferroelectric phase with the doubled unit cell: two E-symmetry modes (the soft mode and a mode corresponding to anti-phase vibrations of neighbouring Pb atoms in the THz range), and the antiferrodistortive mode producing the anti-phase tilts of the oxygen octahedra. The last bare mode is not IR active, but it becomes activated by coupling with the soft mode. Infrared (IR) reflectivity spectra of nominally pure Pb(Zr1-xTix)O3 ceramics with different Ti/Zr concentration (x = 0.42 – 0.58) were measured and evaluated along with the time-domain THz transmittance spectra in the temperature range 10 – 900 K. The temperature dependence of the low-frequency vibrations, related to Pb atoms, was analyzed in terms of two overdamped modes –a soft mode and an anharmonic hopping central mode– in the cubic and high-temperature ferroelectric phase, and three main vibrations in the low-temperature ferroelectric phase with the doubled unit cell: two E-symmetry modes (the soft mode and a mode corresponding to anti-phase vibrations of neighbouring Pb atoms in the THz range), and the antiferrodistortive mode producing the anti-phase tilts of the oxygen octahedra. The last bare mode is not IR active, but it becomes activated by coupling with the soft mode. (en)
Title	Polar lattice vibrations and phase transition dynamics in Pb(Zr1-xTix)O3. Polar lattice vibrations and phase transition dynamics in Pb(Zr1-xTix)O3. (en)
skos:prefLabel	Polar lattice vibrations and phase transition dynamics in Pb(Zr1-xTix)O3. Polar lattice vibrations and phase transition dynamics in Pb(Zr1-xTix)O3. (en)
skos:notation	RIV/68378271:_____/11:00368188!RIV12-AV0-68378271
http://linked.open...avai/predkladatel	Fyzikální ústav AV ČR, v.v.i.
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GAP204/10/0616), Z(AV0Z10100520)
http://linked.open...iv/cisloPeriodika	18
http://linked.open...vai/riv/dodaniDat	2012
http://linked.open...aciTvurceVysledku	Petzelt, Jan Nuzhnyy, Dmitry Buixaderas, Elena
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Fyzikální ústav AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	221058
http://linked.open...ai/riv/idVysledku	RIV/68378271:_____/11:00368188
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	phonons; lattice dynamics; PZT; IR spectroscopy (en)
http://linked.open.../riv/klicoveSlovo	lattice dynamics phonons IR spectroscopy PZT
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[03393BCD6364]
http://linked.open...i/riv/nazevZdroje	Physical Review. B
http://linked.open...in/vavai/riv/obor	BM
http://linked.open...ichTvurcuVysledku	3 (xsd:int)
http://linked.open...cetTvurcuVysledku	5 (xsd:int)
http://linked.open...vavai/riv/projekt	Modern piezoelectric perovskites: lattice vibrations and domain walls
http://linked.open...UplatneniVysledku	2011
http://linked.open...v/svazekPeriodika	84
http://linked.open...iv/tvurceVysledku	Nuzhnyy, Dmitry Petzelt, Jan Buixaderas, Elena Damjanović, D. Jin, L.
http://linked.open...ain/vavai/riv/wos	000297100900005
http://linked.open...n/vavai/riv/zamer	Specific effects in condensed systems with reduced dimension and broken symmetry
issn	1098-0121
number of pages	12 (xsd:int)
http://bibframe.org/vocab/doi	10.1103/PhysRevB.84.184302
is http://linked.open...avai/riv/vysledek of	Polar lattice vibrations and phase transition dynamics in Pb(Zr1-xTix)O3. Polar lattice vibrations and phase transition dynamics in Pb(Zr1-xTix)O3.

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