Zn-substituted brownmillerite-type strontium ferrites

K. V. Pokholok, D. S. Filimonov, M. G. Rozova, O. A. Tyablikov

Research output: Contribution to journalArticlepeer-review

Abstract

New La/Zn substituted strontium ferrites Sr(2 −x)Lax[Fe(2 − x)Znx]O5, (0 ≤ x ≤ 0.3) with brownmillerite- type structure are obtained and studied via X-ray phase analysis and Mössbauer spectroscopy. Depending on the conditions of synthesis, substituting Zn2+ cations can either mainly occupy tetrahedral positions in a brownmillerite structure, or be uniformly distributed between the tetrahedral and octahedral positions. It is shown that they are reversibly oxidized by atmospheric oxygen at elevated temperatures.

Original languageEnglish
Pages (from-to)869-873
Number of pages5
JournalBulletin of the Russian Academy of Sciences: Physics
Volume81
Issue number7
DOIs
Publication statusPublished - 1 Jul 2017
Externally publishedYes

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