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Statements

Subject Item
n2:RIV%2F00216275%3A25310%2F07%3A00006316%21RIV08-MSM-25310___
rdf:type
skos:Concept n15:Vysledek
dcterms:description
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. 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.
dcterms:title
Významné potlačení feromagnetismu hydrostatickým tlakem ve zředěných magnezických polovodičích Sb2-xVxTe3 Significant suppression of ferromagnetism by hydrostatic pressure in the diluted magnetic semiconductor Sb2-xVxTe3 Significant suppression of ferromagnetism by hydrostatic pressure in the diluted magnetic semiconductor Sb2-xVxTe3
skos:prefLabel
Significant suppression of ferromagnetism by hydrostatic pressure in the diluted magnetic semiconductor Sb2-xVxTe3 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
skos:notation
RIV/00216275:25310/07:00006316!RIV08-MSM-25310___
n3:strany
22506-122510
n3:aktivita
n8:Z
n3:aktivity
Z(MSM0021627501)
n3:cisloPeriodika
n
n3:dodaniDat
n4:2008
n3:domaciTvurceVysledku
n10:5367506 n10:8046352
n3:druhVysledku
n9:J
n3:duvernostUdaju
n18:S
n3:entitaPredkladatele
n7:predkladatel
n3:idSjednocenehoVysledku
449772
n3:idVysledku
RIV/00216275:25310/07:00006316
n3:jazykVysledku
n11:eng
n3:klicovaSlova
chalcogenides; crystal growth; transport properties; magnetic properties; hydrostatic pressure
n3:klicoveSlovo
n13:hydrostatic%20pressure n13:crystal%20growth n13:magnetic%20properties n13:chalcogenides n13:transport%20properties
n3:kodStatuVydavatele
US - Spojené státy americké
n3:kontrolniKodProRIV
[9FFDE70F4764]
n3:nazevZdroje
Applied Physics Letters
n3:obor
n17:BM
n3:pocetDomacichTvurcuVysledku
2
n3:pocetTvurcuVysledku
6
n3:rokUplatneniVysledku
n4:2007
n3:svazekPeriodika
91
n3:tvurceVysledku
Quayle, P. Mitchell, T. Drašar, Čestmír Lošťák, Petr Dyck, J. Luciana, A.
n3:zamer
n5:MSM0021627501
s:issn
0003-6951
s:numberOfPages
5
n16:organizacniJednotka
25310