About: Significant suppression of ferromagnetism by hydrostatic pressure in the diluted magnetic semiconductor Sb2-xVxTe3

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Článek se zabývá vlivem hydrostatického tlaku na magnetotransportní vlastnosti monokrystalů Sb2-xVxTe3. Výsledky naznačují, že ferromagnetismus je v těchto materiálech skutečně zprostředkován volnými děrami v rámci RKKY teorie. (cs) The paper reports on the hydrostatic pressure dependence of the magnetotransport properties of ferromagnetic Sb2-xVxTe3 single crystals with x = 0.02 ? 0.03. Pressure significantly increases the free hole concentration in these compounds. In turn, the Curie temperature is suppressed by roughly 40%, which goes against many models that would predict an increase in Curie temperature? with increasing carrier concentration. These results indicate that the ferromagnetism in these materials is carrier-mediated, and that a full RKKY model that takes into account the oscillatory nature of the indirect exchange interaction among localized spins is needed in order to explain the data. The paper reports on the hydrostatic pressure dependence of the magnetotransport properties of ferromagnetic Sb2-xVxTe3 single crystals with x = 0.02 ? 0.03. Pressure significantly increases the free hole concentration in these compounds. In turn, the Curie temperature is suppressed by roughly 40%, which goes against many models that would predict an increase in Curie temperature? with increasing carrier concentration. These results indicate that the ferromagnetism in these materials is carrier-mediated, and that a full RKKY model that takes into account the oscillatory nature of the indirect exchange interaction among localized spins is needed in order to explain the data. (en)
Title	Significant suppression of ferromagnetism by hydrostatic pressure in the diluted magnetic semiconductor Sb2-xVxTe3 Významné potlačení feromagnetismu hydrostatickým tlakem ve zředěných magnezických polovodičích Sb2-xVxTe3 (cs) Significant suppression of ferromagnetism by hydrostatic pressure in the diluted magnetic semiconductor Sb2-xVxTe3 (en)
skos:prefLabel	Significant suppression of ferromagnetism by hydrostatic pressure in the diluted magnetic semiconductor Sb2-xVxTe3 Významné potlačení feromagnetismu hydrostatickým tlakem ve zředěných magnezických polovodičích Sb2-xVxTe3 (cs) Significant suppression of ferromagnetism by hydrostatic pressure in the diluted magnetic semiconductor Sb2-xVxTe3 (en)
skos:notation	RIV/00216275:25310/07:00006316!RIV08-MSM-25310___
http://linked.open.../vavai/riv/strany	22506-122510
http://linked.open...avai/riv/aktivita	Z
http://linked.open...avai/riv/aktivity	Z(MSM0021627501)
http://linked.open...iv/cisloPeriodika	n
http://linked.open...vai/riv/dodaniDat	2008
http://linked.open...aciTvurceVysledku	Drašar, Čestmír Lošťák, Petr
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	Univerzita Pardubice / Fakulta chemicko-technologická
http://linked.open...dnocenehoVysledku	449772
http://linked.open...ai/riv/idVysledku	RIV/00216275:25310/07:00006316
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	chalcogenides; crystal growth; transport properties; magnetic properties; hydrostatic pressure (en)
http://linked.open.../riv/klicoveSlovo	transport properties chalcogenides crystal growth magnetic properties hydrostatic pressure
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[9FFDE70F4764]
http://linked.open...i/riv/nazevZdroje	Applied Physics Letters
http://linked.open...in/vavai/riv/obor	BM
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	6 (xsd:int)
http://linked.open...UplatneniVysledku	2007
http://linked.open...v/svazekPeriodika	91
http://linked.open...iv/tvurceVysledku	Drašar, Čestmír Lošťák, Petr Dyck, J. Luciana, A. Mitchell, T. Quayle, P.
http://linked.open...n/vavai/riv/zamer	Aimed preparation of special compounds and materials and investigation of their physical and chemical properties and supramolecular structures
issn	0003-6951
number of pages	5 (xsd:int)
http://localhost/t...ganizacniJednotka	25310

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