Simultaneous valence shift of Pr and Tb ions at the spin-state transition in (Pr1-yTby)0.7Ca0.3CoO3.

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F13%3A00422574" target="_blank" >RIV/68378271:_____/13:00422574 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1103/PhysRevB.87.155153" target="_blank" >http://dx.doi.org/10.1103/PhysRevB.87.155153</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevB.87.155153" target="_blank" >10.1103/PhysRevB.87.155153</a>

Result language
angličtina
Original language name
Simultaneous valence shift of Pr and Tb ions at the spin-state transition in (Pr1-yTby)0.7Ca0.3CoO3.
Original language description
Temperature dependence of the x-ray absorption near-edge structure (XANES) spectra at the Pr L3 and Tb L3 edges was measured for the (Pr1-yTby )0.7Ca0.3CoO3 system, in which a sharp spin-state (SS) transition took place at a critical temperature TSS. A small increase in the valence of the terbium ion was found below TSS, besides the enhancement of the praseodymium valence; the trivalent states, which are stable at room temperature, change to a 3+/4+ ionic mixture at low temperatures. In particular for the y = 0.2 sample, the average valence determined at 8 K amounts to 3.25+ and 3.03+ for the Pr and Tb ion, respectively.
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BE - Theoretical physics
OECD FORD branch
—

Project
<a href="/en/project/GAP204%2F11%2F0713" target="_blank" >GAP204/11/0713: Charge transfer between the transition metal and rare earth ions in perovskites</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2013
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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