Thermal Physical and Dielectric Properties of Bi1 – xErxFeO3
- Авторы: Kallaev S.N.1, Omarov Z.M.1, Bilalov A.R.1, Kurbaitaev A.Y.1, Reznichenko L.A.2, Khasbulatov S.V.2, Ferzilaev R.M.1
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Учреждения:
- Dagestan Institute of Physics named after Amirkhanov
- Research Institute of Physics
- Выпуск: Том 60, № 9 (2018)
- Страницы: 1861-1864
- Раздел: Phase Transitions
- URL: https://ogarev-online.ru/1063-7834/article/view/203936
- DOI: https://doi.org/10.1134/S1063783418090135
- ID: 203936
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Аннотация
The heat capacity and the permittivity of multiferroics Bi1 – xErxFeO3 (x = 0, 0.10, and 0.15) have been studied in the temperature range 130–800 K. It is found that an insignificant substitution of erbium for bismuth significantly increases the heat capacity in a wide temperature range T > 300 K. The temperature dependence of the excess heat capacity is shown to be due to manifestation of the three-level states. An additional anomaly characteristic of a phase transition has been revealed in the temperature dependences of the heat capacity and the permittivity for the compositions with x = 0.15 at T = 587 K. The results of studies are discussed in combination of the data of structural studies.
Об авторах
S. Kallaev
Dagestan Institute of Physics named after Amirkhanov
Автор, ответственный за переписку.
Email: kallaev-s@rambler.ru
Россия, Makhachkala, Dagestan, 367003
Z. Omarov
Dagestan Institute of Physics named after Amirkhanov
Email: kallaev-s@rambler.ru
Россия, Makhachkala, Dagestan, 367003
A. Bilalov
Dagestan Institute of Physics named after Amirkhanov
Email: kallaev-s@rambler.ru
Россия, Makhachkala, Dagestan, 367003
A. Kurbaitaev
Dagestan Institute of Physics named after Amirkhanov
Email: kallaev-s@rambler.ru
Россия, Makhachkala, Dagestan, 367003
L. Reznichenko
Research Institute of Physics
Email: kallaev-s@rambler.ru
Россия, Rostov-on-Don, 344090
S. Khasbulatov
Research Institute of Physics
Email: kallaev-s@rambler.ru
Россия, Rostov-on-Don, 344090
R. Ferzilaev
Dagestan Institute of Physics named after Amirkhanov
Email: kallaev-s@rambler.ru
Россия, Makhachkala, Dagestan, 367003
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