CHANGES IN THE ELECTRONIC AND MAGNETIC PROPERTIES OF NONSTOICHIOMETRIC FERRITE DOPED WITH VANADIUM La0.5Sr0.5Fe1-yVyO3-z(0 ≤ y ≤ 0.15; 0.05 ≤ z ≤ 0.35)
- Authors: Zaynullina V.M.1,2
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Affiliations:
- Институт химии твердого тела УрО РАН
- Институт физики металлов имени УрО РАН
- Issue: Vol 126, No 9 (2025)
- Pages: 1031-1037
- Section: ЭЛЕКТРИЧЕСКИЕ И МАГНИТНЫЕ СВОЙСТВА
- URL: https://journal-vniispk.ru/0015-3230/article/view/316130
- DOI: https://doi.org/10.7868/S3034621525090085
- ID: 316130
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Abstract
The changes in the electronic spectrum and spin magnetic moment on the 3d shell of iron and vanadium ions in cubic solid solutions La0.5Sr0.5Fe1-yVyO3-z, where 0 ≤ y ≤ 0.15, 0.05 < z ≤ 0.35, depending on the composition, were studied using the coherent potential method. The calculated concentration dependencies of the electronic and magnetic properties of non-stoichiometric ferrites
La0.5Sr0.5FeO3-z and La0.5Sr0.5Fe1-yVyO3-z correlate well with the experimental data. It was shown that the
La0.5Sr0.5Fe0.85V0.15O2.95÷2.65 phases with Fe4+/Fe3+, Fe3+/Fe2+, V4+/V3+, and V3+/V2+ redox transitions in the energy interval Δ ≈ 1.15 eV are of interest for energy storage devices.
About the authors
Veronika M. Zaynullina
Институт химии твердого тела УрО РАН;Институт физики металлов имени УрО РАН
Author for correspondence.
Email: veronika@ihim.uran.ru
к.ф.-м.н., в.н.с.
Russian Federation, ул. Первомайская, 91, Екатеринбург, 620077; ул. С. Ковалевской, 18, Екатеринбург, 620108References
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