Electronic structure of diluted SrFe x Ti 1-x O 3-δ solid solutions

N. Chezhina, D. Korolev, R. Bubnova, Y. Biryukov, O. Glumov, V. Semenov

Результат исследований: Научные публикации в периодических изданияхстатья

Аннотация

The study of diluted solid solutions SrFe x Ti 1-x O 3-δ (0.01 < x < 0.10). High-temperature X-ray powder diffraction (HTXRD), Mössbauer spectra and magnetic susceptibility measurements proved that up to x = 0.015 in the solid solutions there are clusters of Fe(III) atoms, which take part in ferromagnetic exchange through oxygen vacancy starting from 200 K via F-centers and a small fraction of single Fe(IV) atoms. An increase in iron content results in the larger clusters with ferromagnetic exchange both between Fe(III)-[O]-Fe(III) and Fe(III)-O-Fe(IV). The solid solutions are mixed electron-hole-ionic conductors and may be used as sensors of the humidity of gases.

Язык оригиналаанглийский
Страницы (с-по)259-264
Число страниц6
ЖурналJournal of Solid State Chemistry
Том274
DOI
СостояниеОпубликовано - 1 июн 2019

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