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Statements

Subject Item
n2:RIV%2F68378271%3A_____%2F07%3A00085230%21RIV08-AV0-68378271
rdf:type
skos:Concept n16:Vysledek
dcterms:description
Crystal structure, spin state, and semiconductor-metal transitions of LaCoO3 in the 10–905 K temperature range were studied by neutron diffraction at high pressures up to 4.5 GPa and x-ray diffraction and Raman spectroscopy at high pressures up to 17.5 GPa. The susceptibility and thermal-expansion anomalies in the studied pressure range can be described successfully by the thermal excitation of two orbitally nondegenerate magnetic states with different electronic configuration, intermediate spin IS, and high spin HS from the low-spin LS nonmagnetic ground state Crystal structure, spin state, and semiconductor-metal transitions of LaCoO3 in the 10–905 K temperature range were studied by neutron diffraction at high pressures up to 4.5 GPa and x-ray diffraction and Raman spectroscopy at high pressures up to 17.5 GPa. The susceptibility and thermal-expansion anomalies in the studied pressure range can be described successfully by the thermal excitation of two orbitally nondegenerate magnetic states with different electronic configuration, intermediate spin IS, and high spin HS from the low-spin LS nonmagnetic ground state Krystalová struktura, spinový stav a přechod polovodič-kov v LaCoO3byly studovány v rozsahu teplot 10–905 K pomocí neutronové difrakce za vysokých tlaků do 4.5 GPa a rtg. difrakce a Ramanovy spektroskopie za vysokých tlaků do 17.5 GPa. Magnetická susceptibilita a anomálie v teplotní roztažnosti ve studovaném rozsahu tlaků mohou být popsány teplotní excitací dvou orbitálně nedegenerovaných magnetických stavů s rozdílnou elektronovou konfigurací, stavem středního spinu IS, a vysokého spinu HS, z nemagnetického základního stavu nízkého spinu LS
dcterms:title
Temperature and pressure-driven spin-state transitions in LaCoO3. Spinové přechody v LaCoO3 vyvolané teplotou a tlakem Temperature and pressure-driven spin-state transitions in LaCoO3.
skos:prefLabel
Spinové přechody v LaCoO3 vyvolané teplotou a tlakem Temperature and pressure-driven spin-state transitions in LaCoO3. Temperature and pressure-driven spin-state transitions in LaCoO3.
skos:notation
RIV/68378271:_____/07:00085230!RIV08-AV0-68378271
n3:strany
064422/1;064422/10
n3:aktivita
n9:Z
n3:aktivity
Z(AV0Z10100521)
n3:cisloPeriodika
6
n3:dodaniDat
n13:2008
n3:domaciTvurceVysledku
n15:7941447
n3:druhVysledku
n11:J
n3:duvernostUdaju
n8:S
n3:entitaPredkladatele
n7:predkladatel
n3:idSjednocenehoVysledku
454478
n3:idVysledku
RIV/68378271:_____/07:00085230
n3:jazykVysledku
n17:eng
n3:klicovaSlova
LaCoO3; spin transition; thermal expansion; neutron diffraction
n3:klicoveSlovo
n6:neutron%20diffraction n6:LaCoO3 n6:thermal%20expansion n6:spin%20transition
n3:kodStatuVydavatele
US - Spojené státy americké
n3:kontrolniKodProRIV
[1519B5879EF1]
n3:nazevZdroje
Physical Review. B
n3:obor
n14:BM
n3:pocetDomacichTvurcuVysledku
1
n3:pocetTvurcuVysledku
8
n3:rokUplatneniVysledku
n13:2007
n3:svazekPeriodika
75
n3:tvurceVysledku
Jirák, Zdeněk Golosova, N. O. Le Godec, Y. Dubrovinsky, L. S. Glazkov, V. P. Kozlenko, D. P. Tucker, M. G. Savenko, B. N.
n3:zamer
n4:AV0Z10100521
s:issn
1098-0121
s:numberOfPages
10