Abstract
Copper–zinc lanthanum and calcium manganite LaCaCuZnMnO6 was synthesized from oxides of lanthanum(III), copper(II), zinc(II), manganese(III), and calcium carbonate in the temperature range 1073–1473 K. Nanostructured particles were obtained by grinding the material in a vibratory mill. The heat capacity of the compound was studied in the range of 298.15–673 K on an IT-S-400 calorimeter. On dependence curve \(C_{p}^{\circ }\) ~ f(T) at 598 K, an anomalous jump in heat capacity was detected. The temperature dependences of the electrical resistance and relative permittivity were studied on an LCR-781 setup (Taiwan) at 293–483 K and at frequencies of 1, 5, and 10 kHz. A semiconductor character of the conductivity was established. At 483 K, an anomalously high value of the permittivity was revealed at all studied frequencies.
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The study was funded by the Science Committee of the Ministry of Education and Science of the Republic of Kazakhstan, grant no. IRN АР08855601.
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Kasenov, B.K., Kasenova, S.B., Sagintaeva, Z.I. et al. Thermodynamics and Electrophysics of New LaCaCuZnMnO6 Copper–Zinc Manganite of Lanthanum and Calcium. High Temp 60, 474–478 (2022). https://doi.org/10.1134/S0018151X22020225
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DOI: https://doi.org/10.1134/S0018151X22020225