Structural properties and high-temperature spin and electronic transitions in GdCoO: Experiment and theory

YS Orlov, LA Solovyov, VA Dudnikov, AS Fedorov… - Physical Review B …, 2013 - APS
We have investigated the x-ray diffraction (XRD) structure, magnetic susceptibility, and heat
capacity of GdCoO 3 in a wide temperature range. A model of phase separation of the low …

Intermediate-spin state of a 3d ion in the octahedral environment and generalization of the tanabe–sugano diagrams

KV Lamonova, ES Zhitlukhina, RY Babkin… - The Journal of …, 2011 - ACS Publications
Electronic spectra of 3d n transition ions in an octahedral ligand surrounding have been
studied using the modified crystal field approach (MCFA), which includes a relativistic spin …

Anomalous optical phonons in FeTe chalcogenides: Spin state, magnetic order, and lattice anharmonicity

V Gnezdilov, Y Pashkevich, P Lemmens, A Gusev… - Physical Review B …, 2011 - APS
Polarized Raman-scattering spectra of nonsuperconducting, single-crystalline FeTe are
investigated as a function of temperature. We have found a relation between the magnitude …

Microscopic Evidence of Spin State Order and Spin State Phase Separation <?format ?>in Layered Cobaltites with Y, Tb, Dy, and Ho

H Luetkens, M Stingaciu, YG Pashkevich, K Conder… - Physical review …, 2008 - APS
We report muon-spin relaxation measurements on the magnetic structures of R BaCo 2 O
5.5 with R= Y, Tb, Dy, and Ho. Three different phases, one ferrimagnetic and two …

Effect of oxygen content on magnetic properties of layered cobaltites PrBaCo2O5+ δ

S Ganorkar, KR Priolkar, PR Sarode… - Journal of Applied …, 2011 - pubs.aip.org
The effect of oxygen content on the magnetic properties of the layered perovskites has been
investigated. The samples, PrBaCo 2 O 5+ δ (0.35≤ δ≤ 0.80), were prepared by sol-gel …

[HTML][HTML] Modified crystal field theory and its applications

KV Lamonova, SM Orel, YG Pashkevich - Kyiv Akad, 2019 - akademperiodyka.org.ua
A new original approach to the study of coordination complexes with pa ra mag netic ions,
the modified crystal field theory (MCFT), is represented in the monograph. The approach is …

Spectroscopic evidence of spinel phase clustering in solid solutions Hg1− xCrxSe (0.03≤ x≤ 0.1)

K Lamonova, I Ivanchenko, S Orel… - Journal of Physics …, 2009 - iopscience.iop.org
The diluted magnetic semiconductors Hg 1− x Cr x Se (0.03≤ x≤ 0.1) were prepared by the
solid state recrystallization method. The structure microanalysis of the Hg 1− x Cr x Se …

Multi-minimum adiabatic potential in the single crystal normal spinel ZnAl2O4, doped by Cu2+ ions

VA Shapovalov, ES Zhitlukhina… - Journal of Physics …, 2010 - iopscience.iop.org
Spectroscopic investigations of a ZnAl 2 O 4 spinel doped with bivalent copper ions of
0.05% concentration have been carried out in the temperature range 4.2–290 K using a 3 …

Formation mechanism of luminescence spectra of carbon nitride films doped by europium chloride CNx: EuCl3

RY Babkin, KV Lamonova, SM Orel… - Journal of …, 2017 - Elsevier
Luminescence and absorption spectra of nanostructured carbon nitride (CN x)-films doped
by EuCl 3 were studied. It was found that the films with europium concentration equal to 4.5 …

Spin states of cobalt and the thermodynamics of Sm1 − x Ca x CoO3 − δ solid solutions

TN Vasil'chikova, TG Kuz'mova, AA Kamenev… - JETP letters, 2013 - Springer
In the rare-earth SmCoO 3 perovskite, Co 3+ ions at low temperatures appear to be in the
low-spin state with S= 0, t 2 g 2 eg 0. If Ca 2+ ions partially substitute Sm 3+ ions, oxygen …