Effect of Multiplicity Fluctuation in Cobalt Ions on Crystal Structure, Magnetic and Electrical Properties of NdCoO3 and SmCoO3

被引：10

作者：

Dudnikov, Vyacheslav A. ^{[1
]}

Orlov, Yuri S. ^{[1
,2
]}

Solovyov, Leonid A. ^{[3
]}

Vereshchagin, Sergey N. ^{[3
]}

Gavrilkin, Sergey Yu. ^{[4
]}

Tsvetkov, Alexey Yu. ^{[4
]}

Velikanov, Dmitriy A. ^{[1
]}

Gorev, Michael V. ^{[1
,2
]}

Novikov, Sergey V. ^{[5
]}

Ovchinnikov, Sergey G. ^{[1
,2
]}

机构：

[1] RAS, Kirensky Inst Phys, Fed Res Ctr KSC, SB, Krasnoyarsk 660036, Russia

[2] Siberian Fed Univ, Inst Engn Phys & Radio Elect, Krasnoyarsk 660041, Russia

[3] RAS, Fed Res Ctr KSC, Inst Chem & Chem Technol, SB, Krasnoyarsk 660036, Russia

[4] Russian Acad Sci, Lebedev Phys Inst, Moscow 119991, Russia

[5] Russian Acad Sci, Ioffe Inst, St Petersburg 194021, Russia

来源：

MOLECULES | 2020年 / 25卷 / 06期

基金：

俄罗斯科学基金会;

关键词：

rare-earth cobalt oxides; multiplicity fluctuations; structural; magnetic; electrical; and dilatation properties; SPIN-STATE TRANSITIONS; CO3+ ION; CONDUCTIVITY; TEMPERATURE; BEHAVIOR; LACOO3; PR;

D O I：

10.3390/molecules25061301

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

The structural, magnetic, electrical, and dilatation properties of the rare-earth NdCoO3 and SmCoO3 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 GdCoO3 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.

引用

页数：16

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