Получение, структура, диэлектрические и магнитные свойства керамики SrFe-=SUB=-2/3-=/SUB=-W-=SUB=-1/3-=/SUB=-O-=SUB=-3-=/SUB=- | Zendy

А. В. Павленко | Zendy; A. V. Turik | Zendy; Л. А. Шилкина | Zendy; S. P. Kubrin | Zendy; Ю.B. Русалев | Zendy; Л. А. Резниченко | Zendy; И. Н. Андрюшина | Zendy

Open Access

Получение, структура, диэлектрические и магнитные свойства керамики SrFe-=SUB=-2/3-=/SUB=-W-=SUB=-1/3-=/SUB=-O-=SUB=-3-=/SUB=-

Author(s) -

А. В. Павленко,

A. V. Turik,

Л. А. Шилкина,

S. P. Kubrin,

Ю.B. Русалев,

Л. А. Резниченко,

И. Н. Андрюшина

Publication year - 2018

Publication title -

физика твердого тела

Language(s) - English

Resource type - Journals

eISSN - 1726-7498

pISSN - 0367-3294

DOI - 10.21883/ftt.2018.03.45554.263

Subject(s) - tetragonal crystal system , ferrimagnetism , valence (chemistry) , materials science , ceramic , atmospheric temperature range , ferroelectricity , phase transition , sintering , condensed matter physics , phase (matter) , crystallography , mineralogy , dielectric , crystal structure , magnetization , chemistry , metallurgy , magnetic field , thermodynamics , physics , optoelectronics , organic chemistry , quantum mechanics

Polycrystalline samples of SrFe_2/3W_1/3O_3 (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 Fe^3+. 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.

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