About: Second harmonic generation and dielectric study of the fine and coarse grain PMN-35PT ceramics

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	We investigated the grain size effect on the high temperature behaviour of PMN-35PT ceramics around the tetragonal–cubic phase transition using second harmonic generation (SHG) and dielectric spectroscopy. Our data revealed coexistence of the first-order ferroelectric phase transition and relaxor behaviour in the coarse grain (grain size 4 μm) μ_PMN-35PT. The phase transition is hindered and relaxor features prevail in the fine grain (grain size 150 nm) n_PMN-35PT ceramics. Effect of the grain-size reduction on the SHG and dielectric response could be attributed to stabilisation of intermediate domain configurations between the frozen polar nanoclusters and large ferroelectric domains and to the enhanced stability of polar nanoclusters in the fine grain ceramics. We investigated the grain size effect on the high temperature behaviour of PMN-35PT ceramics around the tetragonal–cubic phase transition using second harmonic generation (SHG) and dielectric spectroscopy. Our data revealed coexistence of the first-order ferroelectric phase transition and relaxor behaviour in the coarse grain (grain size 4 μm) μ_PMN-35PT. The phase transition is hindered and relaxor features prevail in the fine grain (grain size 150 nm) n_PMN-35PT ceramics. Effect of the grain-size reduction on the SHG and dielectric response could be attributed to stabilisation of intermediate domain configurations between the frozen polar nanoclusters and large ferroelectric domains and to the enhanced stability of polar nanoclusters in the fine grain ceramics. (en) Byl studován efekt velikosti zrn na vysokoteplotní chování PMN-35PT keramiky v okolí fázového přechodu z tetragonální do kubické fáze pomocí generace druhé harmonické (SHG) a dielektrické spektroskopie. Měření potvrdila koexistenci feroelektrického a relaxorového chování v keramice s hrubým zrnem (rozměru 4 μm), zatímco u jemnozrnné keramiky (zrna 150 nm) převažuje relaxorové chování a fázový přechod probíha spojitě, v souvislosti se zvýšenou stabilizace polárních nanoklastrů v jemnozrnné keramice. (cs)
Title	Second harmonic generation and dielectric study of the fine and coarse grain PMN-35PT ceramics Second harmonic generation and dielectric study of the fine and coarse grain PMN-35PT ceramics (en) Studium jemno- a hrubozrnné keramiky PMN-35PT pomocí SHG a dielektrických měřen (cs)
skos:prefLabel	Second harmonic generation and dielectric study of the fine and coarse grain PMN-35PT ceramics Second harmonic generation and dielectric study of the fine and coarse grain PMN-35PT ceramics (en) Studium jemno- a hrubozrnné keramiky PMN-35PT pomocí SHG a dielektrických měřen (cs)
skos:notation	RIV/68378271:_____/08:00320797!RIV09-AV0-68378271
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GA202/06/0403), P(OC 101), Z(AV0Z10100520)
http://linked.open...iv/cisloPeriodika	11-12
http://linked.open...vai/riv/dodaniDat	2009
http://linked.open...aciTvurceVysledku	Vaněk, Přemysl Petzelt, Jan Nuzhnyy, Dmitry Kamba, Stanislav Savinov, Maxim Kroupa, Jan Bovtun, Viktor
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	394008
http://linked.open...ai/riv/idVysledku	RIV/68378271:_____/08:00320797
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	relaxor ferroelectrics; phase transitions; PMN-PT; SHG; dielectric (en)
http://linked.open.../riv/klicoveSlovo	relaxor ferroelectrics phase transitions dielectric SHG PMN-PT
http://linked.open...odStatuVydavatele	GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV	[B8422DC84D77]
http://linked.open...i/riv/nazevZdroje	Phase Transitions
http://linked.open...in/vavai/riv/obor	BM
http://linked.open...ichTvurcuVysledku	7 (xsd:int)
http://linked.open...cetTvurcuVysledku	11 (xsd:int)
http://linked.open...vavai/riv/projekt	http://linked.opendata.cz/resource/domain/vavai/projekt/OC%20101 Broad-band dielektric spectroscopy of relaxor ferroelectrics and multiferroics
http://linked.open...UplatneniVysledku	2008
http://linked.open...v/svazekPeriodika	81
http://linked.open...iv/tvurceVysledku	Bovtun, Viktor Kosec, M. Kamba, Stanislav Vaněk, Přemysl Petzelt, Jan Savinov, Maxim Kroupa, Jan Noujni, Dmitri Alguero, M. Amorin, H. Holc, J.
http://linked.open...ain/vavai/riv/wos	000261661300012
http://linked.open...n/vavai/riv/zamer	Specific effects in condensed systems with reduced dimension and broken symmetry
issn	0141-1594
number of pages	6 (xsd:int)

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