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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Published inAngewandte Chemie International Edition Vol. 50; no. 52; pp. 12547 - 12550
Main Authors Hayashi, Naoaki, Yamamoto, Takafumi, Kageyama, Hiroshi, Nishi, Masakazu, Watanabe, Yoshitaka, Kawakami, Takateru, Matsushita, Yoshitaka, Fujimori, Atsushi, Takano, Mikio
Format Journal Article
LanguageEnglish
Published Weinheim WILEY-VCH Verlag 23.12.2011
WILEY‐VCH Verlag
Wiley Subscription Services, Inc
EditionInternational ed. in English
Subjects
Barium Compounds - chemistry
charge transfer
Ferric Compounds - chemistry
iron
Iron oxides
Low temperature
magnetic properties
Magnets
Oxidizing agents
ozone
perovskite phases
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ISSN1433-7851
1521-3773
1521-3773
DOI10.1002/anie.201105276

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Summary: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.
Bibliography:Material Science and Engineering (Japan)
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This study was by a Grant-in-Aid for Scientific Research 20750050, 20750046, 22245009, and 17105002 from the Ministry of Education, Science, Sports and Culture (Japan), and by the Nippon Sheet Glass Foundation for Material Science and Engineering (Japan). We thank Y. Shimakawa of ICR, Kyoto University for allowing the use of the magnetometer, Dr. K. Ohoyama of Tohoku University for his help in the ND measurements, M. Tanaka, and Y. Katsuya of NIMS for their help in the high-resolution synchrotron XRD measurements, and Prof. T. Tohyama of YITP, Kyoto University for useful discussions.
ArticleID:ANIE201105276
Ministry of Education, Science, Sports and Culture (Japan)
This study was by a Grant‐in‐Aid for Scientific Research 20750050, 20750046, 22245009, and 17105002 from the Ministry of Education, Science, Sports and Culture (Japan), and by the Nippon Sheet Glass Foundation for Material Science and Engineering (Japan). We thank Y. Shimakawa of ICR, Kyoto University for allowing the use of the magnetometer, Dr. K. Ohoyama of Tohoku University for his help in the ND measurements, M. Tanaka, and Y. Katsuya of NIMS for their help in the high‐resolution synchrotron XRD measurements, and Prof. T. Tohyama of YITP, Kyoto University for useful discussions.
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ISSN:1433-7851
1521-3773
1521-3773
DOI:10.1002/anie.201105276