Magnetic Hyperfine Interactions of 57Fe Probe Atoms in the CaCuxMn7 –xO12 (0 ≤ x ≤ 1) Manganites

Magnetic and Mössbauer measurements are performed on the nuclei of 57 Fe probe atoms in the structure of the substituted CaCu x Mn 6.96 – x 57 Fe 0.04 O 12 (0 ≤ x ≤ 1) manganites in the magnetic-ordering temperature range T ≤ T N,C . The experimental results are used to analyze the exchange interact...

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Bibliographic Details
Published in:Journal of experimental and theoretical physics 2021, Vol.132 (3), p.426-437
Main Authors: Glazkova, Ya. S., Rusakov, V. S., Sobolev, A. V., Gapochka, A. M., Gubaidulina, T. V., Volkova, O. S., Vasil’ev, A. N., Presnyakov, I. A.
Format: Article
Language:English
Subjects:
Atomic structure
Classical and Quantum Gravitation
Disorder
Elementary Particles
Iron 57
Manganites
Order
Particle and Nuclear Physics
Phase Transition in Condensed System
Physics
Physics and Astronomy
Quantum Field Theory
Relativity Theory
Solid State Physics
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Summary:Magnetic and Mössbauer measurements are performed on the nuclei of 57 Fe probe atoms in the structure of the substituted CaCu x Mn 6.96 – x 57 Fe 0.04 O 12 (0 ≤ x ≤ 1) manganites in the magnetic-ordering temperature range T ≤ T N,C . The experimental results are used to analyze the exchange interactions and the possible magnetic-ordering configurations of cations with octahedral (Mn 3+ /Mn 4+ ) and square (Cu 2+ /Mn 3+ ) oxygen coordinations. The causes of the nonmonotonic change in the magnetic-ordering temperature T N,C ( x ) with composition x of the copper-substituted manganites are considered.
ISSN:1063-7761
1090-6509
DOI:10.1134/S106377612103002X