Neutron diffraction and heat capacity studies of PrCoO3 and NdCoO3.

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F09%3A00331991" target="_blank" >RIV/68378271:_____/09:00331991 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Neutron diffraction and heat capacity studies of PrCoO3 and NdCoO3.

Original language description

The crystal structures of perovskites NdCoO3 and PrCoO3 have been studied by neutron powder diffraction over a temperature range from 100 to 1000 K. An anomalous isotropic expansion of CoO6 octahedra is observed at two successive temperatures corresponding to the spin transitions of Co3+ from low spin (LS) (S=0) to high spin (HS) (S=2) and intermediate spin (IS) (S=1). At the second spin transition, a significant change in the octahedral tilt is encountered, as well. The heat capacity measurements showbroad excess peaks at both transitions and the integral entropy change for each of them is estimated to be 10 J K-1 mol-1. The structural and specific heat anomalies are interpreted within the LS-LS/HS-IS model of the Co3+ spin transitions.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BM - Solid-state physics and magnetism

OECD FORD branch

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Project

<a href="/en/project/GA202%2F09%2F0421" target="_blank" >GA202/09/0421: Magnetic polarons in cobaltites</a><br>

Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2009

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Physical Review. B

ISSN

1098-0121

e-ISSN

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Volume of the periodical

79

Issue of the periodical within the volume

13

Country of publishing house

US - UNITED STATES

Number of pages

7

Pages from-to

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UT code for WoS article

000265942800032

EID of the result in the Scopus database

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