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TVT, 2019, Volume 57, Issue 4, Pages 518–523 (Mi tvt11068)  

Thermophysical Properties of Materials

$ Bi_{0.9}\rm M_{0.1}\rm FeO_3 (\rm M - \rm La{,} \rm Pr{,} \rm Nd{,} \rm Sm)$ multiferroics: thermophysical properties at high temperatures

G. G. Gadzhieva, Z. M. Omarova, M.-R. M. Magomedovab, Kh. Kh. Abdullaeva, A. A. Amirovaa, L. A. Reznichenkoc, S. W. Khasbulatovc

a Daghestan Institute of Physics after Amirkhanov
b Dagestan State Medical University, Makhachkala, Russia
c Research Institute of Physics, Southern Federal University

Abstract: Comprehensive studies of the thermophysical properties (thermal conductivity, thermal diffusivity, heat capacity, thermal expansion coefficient) of solid solutions of the $ Bi_{0.9}\rm M_{0.1}\rm FeO_3 (\rm M - \rm La{,} \rm Pr{,} \rm Nd{,} \rm Sm)$ multiferroics have been carried out within the temperature range of $300$$800$ K. Anomalies of the thermophysical properties caused by phase transitions are observed within the Néel temperature domain $(640$$650$ K$)$. Formulas are proposed for the calculation of the studied thermophysical properties within the domains of the structural phase transitions, and a clear correlation is established for the dependences of the thermophysical properties within the domain of the structural phase transitions.

Funding Agency Grant Number
Ministry of Science and Higher Education of the Russian Federation 3.6371.2017/8.9
3.6439.2017/8.9
The work was performed within the framework of the government assignment of the Ministry for Education and Science of the Russian Federation, project nos. 3.6371.2017/8.9 and 3.6439.2017/8.9, with the use of equipment from the Electromagnetic, Electromechanical, and Thermal Properties of Solids Center for Collective Use at the Research Institute of Physics of Southern Federal University.

Author to whom correspondence should be addressed

DOI: https://doi.org/10.1134/S0040364419040057

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English version:
High Temperature, 2019, 57:4, 477–481

Bibliographic databases:

UDC: 532.529
Received: 04.06.2018
Revised: 24.07.2018
Accepted:25.12.2018

Citation: G. G. Gadzhiev, Z. M. Omarov, M.-R. M. Magomedov, Kh. Kh. Abdullaev, A. A. Amirova, L. A. Reznichenko, S. W. Khasbulatov, “$ Bi_{0.9}\rm M_{0.1}\rm FeO_3 (\rm M - \rm La{,} \rm Pr{,} \rm Nd{,} \rm Sm)$ multiferroics: thermophysical properties at high temperatures”, TVT, 57:4 (2019), 518–523; High Temperature, 57:4 (2019), 477–481

Citation in format AMSBIB
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\by G.~G.~Gadzhiev, Z.~M.~Omarov, M.-R.~M.~Magomedov, Kh.~Kh.~Abdullaev, A.~A.~Amirova, L.~A.~Reznichenko, S.~W.~Khasbulatov
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\crossref{https://doi.org/10.1134/S0040364419040057}
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