Thermal Diffusivity and Thermal Conductivity of Bi1 –xGdxFeO3 (x = 0–0.30) Multiferroics


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Abstract

We have studied the thermal diffusivity and thermal conductivity of Bi1 –xGdxFeO3 multiferroics within the high temperature range of 300–1200 K. We consider the dominant mechanisms of the heat transfer of phonons within the domain of ferroelectric and antiferromagnetic phase transitions and determine the temperature dependence of the mean free path of the phonons.

About the authors

S. N. Kallaev

Institute of Physics, Dagestan Research Center, Russian Academy of Sciences

Author for correspondence.
Email: kallaev-s@rambler.ru
Russian Federation, Makhachkala, Dagestan Republic, 367015

A. G. Bakmaev

Institute of Physics, Dagestan Research Center, Russian Academy of Sciences

Author for correspondence.
Email: bakmaev@mail.ru
Russian Federation, Makhachkala, Dagestan Republic, 367015

S. V. Khasbulatov

Research Institute of Physics, Southern Federal University

Email: bakmaev@mail.ru
Russian Federation, Rostov-on-Don, 344090

L. A. Reznichenko

Research Institute of Physics, Southern Federal University

Email: bakmaev@mail.ru
Russian Federation, Rostov-on-Don, 344090

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