Preparation, Structure, and Dielectric and Magnetic Properties of SrFe2/3W1/3O3 Ceramics


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Аннотация

Polycrystalline samples of SrFe2/3W1/3O3 (SFWO) ceramic were obtained by solid-phase reactions with subsequent sintering using conventional ceramic technology. X-ray diffraction analysis showed that at room temperature, the SFWO ceramic is single-phase and has a perovskite-type structure with tetragonal symmetry and parameters a = 3.941(9) Å, c = 3.955(6) Å, and c/a = 1.0035. In studying the magnetic properties and the Mössbauer effect in SFWO ceramics, it is found that the material is a ferrimagnet, and the iron ions are only in the valence state of Fe3+. It is suggested that in the temperature range of T = 150–210°C, a smeared phase transition from a cubic (paraelectric) phase to a tetragonal (ferroelectric) phase takes place in SFWO with decreasing temperature.

Авторлар туралы

A. Pavlenko

Research Institute of Physics; Southern Scientific Center

Хат алмасуға жауапты Автор.
Email: AntVPR@mail.ru
Ресей, Rostov-on-Don, 344090; Rostov-on-Don, 344006

A. Turik

Research Institute of Physics

Email: AntVPR@mail.ru
Ресей, Rostov-on-Don, 344090

L. Shilkina

Research Institute of Physics

Email: AntVPR@mail.ru
Ресей, Rostov-on-Don, 344090

S. Kubrin

Research Institute of Physics

Email: AntVPR@mail.ru
Ресей, Rostov-on-Don, 344090

Yu. Rusalev

Smart Materials Research Center

Email: AntVPR@mail.ru
Ресей, Rostov-on-Don, 344090

L. Reznichenko

Research Institute of Physics

Email: AntVPR@mail.ru
Ресей, Rostov-on-Don, 344090

I. Andryushina

Research Institute of Physics

Email: AntVPR@mail.ru
Ресей, Rostov-on-Don, 344090

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