Neutron Diffraction Study of Pr0.5Ca0.5CoO3-gamma (gamma=0 and 0.07)

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F07%3A04139430" target="_blank" >RIV/68407700:21340/07:04139430 - 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 Study of Pr0.5Ca0.5CoO3-gamma (gamma=0 and 0.07)

Original language description

The as-prepared sample of cobaltite Pr0.5Ca0.5CoO3-gamma with an oxygen deficiency gamma=0.07 (formal cobalt valence 3.35) shows a non-uniform state where a ferromagnetic metallic phase (TC=75 K) coexists with the low-temperature phase of distinctly smaller unit cell and insulating character, formed below 30 K. In the oxygenated cobaltite (gamma=0, formal cobalt valence 3.5), the ferromagnetism is suppressed and the sample is completely transformed to the low-temperature phase at an increased temperature of 70 K. The different structure of the ferromagnetic metallic and paramagnetic insulating phases is attributed to the spin-state transition of Co3+/Co4+ ions.

Czech name

Neutronografické studium Pr0.5Ca0.5CoO3-gamma pro (gamma=0 and 0.07)

Czech description

Neutronografické studium Pr0.5Ca0.5CoO3-gamma pro (gamma=0 and 0.07)

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

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Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2007

Confidentiality

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

Name of the periodical

Zeitschrift fur Kristallographie

ISSN

0044-2968

e-ISSN

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Volume of the periodical

26

Issue of the periodical within the volume

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Country of publishing house

DE - GERMANY

Number of pages

6

Pages from-to

435-440

UT code for WoS article

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EID of the result in the Scopus database

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