Ferrite Sr3NdFe3O9: An Original Intergrowth between the Brownmillerite and K2NiF4-type Structures

The coupled neutron diffraction and Mossbaüer study of the layered oxide Sr3NdFe3O9 shows for the first time the possibility of anionic vacancies ordering in an oxygen-deficient related Ruddlesden−Popper- (RP-) type ferrite leading to an original intergrowth of brownmillerite and K2NiF4-type layers....

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Bibliographic Details
Published inChemistry of materials Vol. 17; no. 26; pp. 6619 - 6623
Main Authors Barrier, N, Pelloquin, D, Nguyen, N, Giot, M, Bourée, F, Raveau, B
Format Journal Article
LanguageEnglish
Published American Chemical Society 27.12.2005
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Summary:The coupled neutron diffraction and Mossbaüer study of the layered oxide Sr3NdFe3O9 shows for the first time the possibility of anionic vacancies ordering in an oxygen-deficient related Ruddlesden−Popper- (RP-) type ferrite leading to an original intergrowth of brownmillerite and K2NiF4-type layers. The antiferromagnetic properties of this phase up to 500 K are also evidenced. These results open the route to the synthesis of new members in the series (Sr2Fe2O5) n ·SrLnFeO4 and to the understanding of their reactivity with atmospheric water.
Bibliography:ark:/67375/TPS-M6CHDBCJ-N
istex:F9465EA170B993CBB1E6366C27ED12489767476A
ISSN:0897-4756
1520-5002
DOI:10.1021/cm051729f