Ferromagnetism Induced by Substitution of the Iron(IV) Ion by an Unusual High‐Valence Nickel(IV) Ion in Antiferromagnetic SrFeO 3

Novel cubic perovskites SrFe 1− x Ni x O 3 (0≤ x ≤0.5) with unusual high‐valence iron(IV) and nickel(IV) ions were obtained by high‐pressure and high‐temperature synthesis. Substantial magnetic moments of Ni IV , which is intrinsically nonmagnetic with a nominal d 6 electron configuration, were indu...

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Bibliographic Details
Published in:Angewandte Chemie International Edition 2016-01, Vol.55 (4), p.1360-1363
Main Authors: Seki, Hayato, Hosaka, Yoshiteru, Saito, Takashi, Mizumaki, Masaichiro, Shimakawa, Yuichi
Format: Article
Language:English
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Summary:Novel cubic perovskites SrFe 1− x Ni x O 3 (0≤ x ≤0.5) with unusual high‐valence iron(IV) and nickel(IV) ions were obtained by high‐pressure and high‐temperature synthesis. Substantial magnetic moments of Ni IV , which is intrinsically nonmagnetic with a nominal d 6 electron configuration, were induced by the large magnetic moments of Fe IV through orbital hybridization with oxygen. As a result, ferromagnetism with the transition temperature ( T c ) above room temperature could be induced.
ISSN:1433-7851
1521-3773
DOI:10.1002/anie.201509195