BaFeO3: A Ferromagnetic Iron Oxide

BaFeO3: A Ferromagnetic Iron Oxide

Magnetic attraction: The cubic perovskite BaFeO3 (see picture, Ba blue, Fe brown, O white), which is obtained by a low‐temperature reaction using ozone as an oxidant, exhibits ferromagnetism with a fairly large moment of 3.5 μB per Fe ion above a small critical field of approximately 0.3 T. This spe...

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Veröffentlicht in:Angewandte Chemie International Edition 2011-12, Vol.50 (52), p.12547-12550
Hauptverfasser: Hayashi, Naoaki, Yamamoto, Takafumi, Kageyama, Hiroshi, Nishi, Masakazu, Watanabe, Yoshitaka, Kawakami, Takateru, Matsushita, Yoshitaka, Fujimori, Atsushi, Takano, Mikio
Format: Artikel
Sprache:eng
Schlagworte:
Barium Compounds - chemistry
charge transfer
Ferric Compounds - chemistry
iron
magnetic properties
Magnets
ozone
perovskite phases
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Zusammenfassung:Magnetic attraction: The cubic perovskite BaFeO3 (see picture, Ba blue, Fe brown, O white), which is obtained by a low‐temperature reaction using ozone as an oxidant, exhibits ferromagnetism with a fairly large moment of 3.5 μB per Fe ion above a small critical field of approximately 0.3 T. This specific ferromagnetism is attributed to the enhancement of O→Fe charge transfer that arises from deepening of the Fe4+ d levels.
ISSN:1433-7851
1521-3773
DOI:10.1002/anie.201105276