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TVT, 2019, Volume 57, Issue 2, Pages 207–211 (Mi tvt11062)  

Thermophysical Properties of Materials

Thermophysical properties of solid solutions of $\mathrm{Bi}_{1-x}\mathrm{Nd}_x\mathrm{Fe}_{1-x}\mathrm{Mn}_x\mathrm{O}_3$ multiferroics $(x = 0.03{,} 0.09)$ at high temperatures

A. I. Klyndyuka, A. A. Khortb

a Belarusian State Technological University, Minsk
b Institute for Heat and Mass Transfer named after A. V. Lykov, Belarus Academy of Sciences

Abstract: The thermal diffusivity, thermal conductivity, and specific heat of solid solutions of of $\mathrm{Bi}_{1-x}\mathrm{Nd}_x\mathrm{Fe}_{1-x}\mathrm{Mn}_x\mathrm{O}_3$ multiferroics $(x = 0.03{,} 0.09)$ have been studied in a wide temperature range (above room temperature). It is established that substitutions $ Nd^{3+} \to \rm Bi^{3+}$ and $\rm Mn^{3+} \to \rm Fe^{3+}$ in $\rm BiFeO_3$ lead to a decrease in the thermal diffusivity and thermal conductivity of $\mathrm{Bi}_{1-x}\mathrm{Nd}_x\mathrm{Fe}_{1-x}\mathrm{Mn}_x\mathrm{O}_3$ solid solutions and reduce the temperatures of antiferromagnetic and ferroelectric orderings. The temperature dependence of the phonon mean free path is found. The factors limiting the phonon transfer in samples are determined.

Funding Agency Grant Number
Belarusian Republican Foundation for Fundamental Research 13-005
This study was supported by the Belarusian Republican Foundation for Fundamental Research, grant no. Kh13-005.

Author to whom correspondence should be addressed

DOI: https://doi.org/10.1134/S0040364419010149

Full text: PDF file (330 kB)
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English version:
High Temperature, 2019, 57:2, 186–189

Bibliographic databases:

UDC: 536.2.023+536.21+536.631+54165+54--31
Received: 18.05.2018
Accepted:10.10.2018

Citation: A. I. Klyndyuk, A. A. Khort, “Thermophysical properties of solid solutions of $\mathrm{Bi}_{1-x}\mathrm{Nd}_x\mathrm{Fe}_{1-x}\mathrm{Mn}_x\mathrm{O}_3$ multiferroics $(x = 0.03{,} 0.09)$ at high temperatures”, TVT, 57:2 (2019), 207–211; High Temperature, 57:2 (2019), 186–189

Citation in format AMSBIB
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\paper Thermophysical properties of solid solutions of $\mathrm{Bi}_{1-x}\mathrm{Nd}_x\mathrm{Fe}_{1-x}\mathrm{Mn}_x\mathrm{O}_3$ multiferroics $(x = 0.03{,}\,0.09)$ at high temperatures
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