Effect of Multiplicity Fluctuation in Cobalt Ions on Crystal Structure, Magnetic and Electrical Properties of NdCoO 3 and SmCoO 3 .

Authors :: Dudnikov VA
Orlov YS
Solovyov LA
Vereshchagin SN
Gavrilkin SY
Tsvetkov AY
Velikanov DA
Gorev MV
Novikov SV
Ovchinnikov SG
Source :: Molecules (Basel, Switzerland) [Molecules] 2020 Mar 12; Vol. 25 (6). Date of Electronic Publication: 2020 Mar 12.
Publication Year :: 2020
Abstract: The structural, magnetic, electrical, and dilatation properties of the rare-earth NdCoO <subscript>3</subscript> and SmCoO <subscript>3</subscript> cobaltites were investigated. Their comparative analysis was carried out and the effect of multiplicity fluctuations on physical properties of the studied cobaltites was considered. Correlations between the spin state change of cobalt ions and the temperature dependence anomalies of the lattice parameters, magnetic susceptibility, volume thermal expansion coefficient, and electrical resistance have been revealed. A comparison of the results with well-studied GdCoO <subscript>3</subscript> allows one to single out both the general tendencies inherent in all rare-earth cobaltites taking into account the lanthanide contraction and peculiar properties of the samples containing Nd and Sm.

Subjects :: Crystallography, X-Ray
Electromagnetic Phenomena
Ions chemistry
Magnetics
Cobalt chemistry
Molecular Structure
Neodymium chemistry
Oxides chemistry
Samarium chemistry

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