About: An x-ray scattering study of Sn2P2S6: absence of incommensurate phase up to 1 GPa

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About: An x-ray scattering study of Sn2P2S6: absence of incommensurate phase up to 1 GPa Goto Sponge NotDistinct Permalink

An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

Attributes	Values
rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
rdfs:seeAlso	http://iopscience.iop.org/0953-8984/25/11/115901
Description	The ferroelectric phase transition in a semiconductor Sn2P2S6 single crystal has been studied by means of high-resolution synchrotron x-ray diffraction in the pressure–temperature range where an incommensurate modulated phase has been anticipated for many years. In contrast with the predictions, the present measurements reveal only a direct ferroelectric–paraelectric phase transition close to T = 100 K, p = 1.1 GPa. In the vicinity of this phase transition, a characteristic critical diffuse scattering was observed, but no satellite peaks could be resolved there. It is concluded that the earlier hypothesis about the presence of an incommensurate phase and associated Lifshitz point in the temperature–pressure phase diagram of Sn2P2S6 is incorrect. The ferroelectric phase transition in a semiconductor Sn2P2S6 single crystal has been studied by means of high-resolution synchrotron x-ray diffraction in the pressure–temperature range where an incommensurate modulated phase has been anticipated for many years. In contrast with the predictions, the present measurements reveal only a direct ferroelectric–paraelectric phase transition close to T = 100 K, p = 1.1 GPa. In the vicinity of this phase transition, a characteristic critical diffuse scattering was observed, but no satellite peaks could be resolved there. It is concluded that the earlier hypothesis about the presence of an incommensurate phase and associated Lifshitz point in the temperature–pressure phase diagram of Sn2P2S6 is incorrect. (en)
Title	An x-ray scattering study of Sn2P2S6: absence of incommensurate phase up to 1 GPa An x-ray scattering study of Sn2P2S6: absence of incommensurate phase up to 1 GPa (en)
skos:prefLabel	An x-ray scattering study of Sn2P2S6: absence of incommensurate phase up to 1 GPa An x-ray scattering study of Sn2P2S6: absence of incommensurate phase up to 1 GPa (en)
skos:notation	RIV/68378271:_____/13:00398275!RIV14-MSM-68378271
http://linked.open...avai/riv/aktivita	I P
http://linked.open...avai/riv/aktivity	I, P(GAP204/10/0616), P(GD202/09/H041), P(LA10010)
http://linked.open...iv/cisloPeriodika	11
http://linked.open...vai/riv/dodaniDat	2014
http://linked.open...aciTvurceVysledku	Kempa, Martin Hlinka, Jiří Ondrejkovič, Petr Guennou, Mael
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	60418
http://linked.open...ai/riv/idVysledku	RIV/68378271:_____/13:00398275
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	X-ray scattering; phase transitions and Curie point; phase diagrams of other materials; incommensurate crystals; dielectric; ferroelectric (en)
http://linked.open.../riv/klicoveSlovo	X-ray scattering incommensurate crystals phase diagrams of other materials phase transitions and Curie point dielectric ferroelectric
http://linked.open...odStatuVydavatele	GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV	[7DA0CAA2A71D]
http://linked.open...i/riv/nazevZdroje	Journal of Physics-Condensed Matter
http://linked.open...in/vavai/riv/obor	BM
http://linked.open...ichTvurcuVysledku	4 (xsd:int)
http://linked.open...cetTvurcuVysledku	5 (xsd:int)
http://linked.open...vavai/riv/projekt	Membership in the European Synchrotron Radiation Facility Physics of nanostructures Modern piezoelectric perovskites: lattice vibrations and domain walls
http://linked.open...UplatneniVysledku	2013
http://linked.open...v/svazekPeriodika	25
http://linked.open...iv/tvurceVysledku	Hlinka, Jiří Kempa, Martin Ondrejkovič, Petr Vysochanskii, Y. Guennou, Mael
http://linked.open...ain/vavai/riv/wos	000315597600018
issn	0953-8984
number of pages	5 (xsd:int)
http://bibframe.org/vocab/doi	10.1088/0953-8984/25/11/115901

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