Effect of the degree of doping on the size and magnetic properties of nanocrystals La1 – xZnxFeO3 synthesized by the sol–gel method

Mittova, I.Y.; Perov, N.S.; Al’myasheva, O.V.; Tien, N.A.; Mittova, V.O.; Bessalova, V.V.; Viryutina, E.L.

Информация о цитировании статьи получена из Web of Science, Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 13 июня 2017 г.

Авторы: Mittova I.Y., Perov N.S., Al’myasheva O.V., Tien N.A., Mittova V.O., Bessalova V.V., Viryutina E.L.
Журнал: Russian Journal of Inorganic Chemistry
Том: 62
Номер: 3
Год издания: 2017
Издательство: Maik Nauka/Interperiodica Publishing
Местоположение издательства: Russian Federation
Первая страница: 281
Последняя страница: 287
DOI: 10.1134/S0036023617030081
Аннотация: Nanopowders La1–xZnxFeO3 (nominal degree of doping xnom = 0, 0.05, 0.075, 0.1, 0.15, 0.2, 0.3, and 0.4) were synthesized by the sol–gel method using aqueous ammonia as a precipitator and were then annealed at 950°C for 60 min. From the data of X-ray powder diffraction analysis and local electron probe microanalysis, the maximum actual limit of doping of lanthanum ferrite with zinc was determined: x = 0.072. The dependence of the particle size on the Zn2+ content was found to be nonmonotonic. The magnetic characteristics (specific magnetization J, coercivity Hc, and magnetic susceptibility χ) of samples at temperatures of 300 and 100 K in fields of up to 1300 kA/m. It was shown that, with increasing degree of doping, J increases from 0.188 A m2/kg (at x = 0) to 0.245 A m2/kg (at x = 0.072), and χ varies nonmonotonically from 11.5 × 10–6 (at x = 0) to 15.3 × 10–6 (at x = 0.072) (at 300 K). With decreasing measurement temperature to 100 K, the magnetization and susceptibility monotonically increase.
Добавил в систему: Перов Николай Сергеевич

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Effect of the degree of doping on the size and magnetic properties of nanocrystals La1 – xZnxFeO3 synthesized by the sol–gel methodстатья

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