About: Neutron diffraction study of Pr0.5Ca0.5CoO3.-γ (γ=0 and 0.07)

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Kyslíkově deficitní vzorek kobaltitu Pr0.5Ca0.5CoO3-γ (γ=0.07) vykazuje nehomogenní stav, v němž feromagnetická metalická fáze koexistuje s nízkoteplotní fází isolantního charakteru a se znatelně menší elementární buňkou. V nakysličeném vzorku (γ=0) je feromagnetismus potlačen a vzorek se pod 70 K kompletně transformuje do nízkoteplotní fáze. Rozdílné struktury feromagnetické metalické a paramagnetické isolantní fáze jsou připsány spinovému přechodu iontů Co3+/Co4+. (cs) Oxygen deficient sample of cobaltite Pr0.5Ca0.5CoO3-γ (γ=0.07) shows a non-uniform state in which ferromagnetic metallic phase coexists with a low-temperature phase of distictly smaller unit cell and insulating character. In the oxygenated sample (γ=0), the ferromagnetism is suppressed and the sample is completely transformed to the low-temperature phase below 70 K. The different structures of the ferromagnetic metallic and paramagnetic insulating phases are attributed to the spin-state transition of Co3+/Co4+ ions. Oxygen deficient sample of cobaltite Pr0.5Ca0.5CoO3-γ (γ=0.07) shows a non-uniform state in which ferromagnetic metallic phase coexists with a low-temperature phase of distictly smaller unit cell and insulating character. In the oxygenated sample (γ=0), the ferromagnetism is suppressed and the sample is completely transformed to the low-temperature phase below 70 K. The different structures of the ferromagnetic metallic and paramagnetic insulating phases are attributed to the spin-state transition of Co3+/Co4+ ions. (en)
Title	Neutron diffraction study of Pr0.5Ca0.5CoO3.-γ (γ=0 and 0.07) Studium neutronové difrakce na Pr0.5Ca0.5CoO3.-γ(γ=0 and 0.07) (cs) Neutron diffraction study of Pr0.5Ca0.5CoO3.-γ (γ=0 and 0.07) (en)
skos:prefLabel	Neutron diffraction study of Pr0.5Ca0.5CoO3.-γ (γ=0 and 0.07) Studium neutronové difrakce na Pr0.5Ca0.5CoO3.-γ(γ=0 and 0.07) (cs) Neutron diffraction study of Pr0.5Ca0.5CoO3.-γ (γ=0 and 0.07) (en)
skos:notation	RIV/68378271:_____/07:00098442!RIV08-AV0-68378271
http://linked.open.../vavai/riv/strany	435;440
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GA202/06/0051), P(IAA100100611), Z(AV0Z10100521)
http://linked.open...iv/cisloPeriodika	Suppl.
http://linked.open...vai/riv/dodaniDat	2008
http://linked.open...aciTvurceVysledku	Knížek, Karel Maryško, Miroslav Jirák, Zdeněk Hejtmánek, Jiří
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	437039
http://linked.open...ai/riv/idVysledku	RIV/68378271:_____/07:00098442
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	neutron diffraction; Pr0.5Ca0.5CoO3.-γ (en)
http://linked.open.../riv/klicoveSlovo	Pr0.5Ca0.5CoO3.-γ neutron diffraction
http://linked.open...odStatuVydavatele	DE - Spolková republika Německo
http://linked.open...ontrolniKodProRIV	[7E6E3888582A]
http://linked.open...i/riv/nazevZdroje	Zeitschrift für Kristallographie
http://linked.open...in/vavai/riv/obor	BM
http://linked.open...ichTvurcuVysledku	4 (xsd:int)
http://linked.open...cetTvurcuVysledku	7 (xsd:int)
http://linked.open...vavai/riv/projekt	Electronic structure and local spin states in doped cobaltites Magnetism and the insulator-metal transition in the Co3+/Co4+ perovskites.
http://linked.open...UplatneniVysledku	2007
http://linked.open...v/svazekPeriodika	26
http://linked.open...iv/tvurceVysledku	Knížek, Karel Dlouhá, M. Jirák, Zdeněk Maryško, Miroslav Vratislav, S. Hejtmánek, Jiří Chichev, A.
http://linked.open...n/vavai/riv/zamer	Physics and technology of nanostructures, surfaces and thin films
issn	0044-2968
number of pages	6 (xsd:int)

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