Synthesis of Novel Materials Based on Square Planar Iron and Exploringof Room Temperature Functionality
| Project/Area Number |
22245009
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| Research Category |
Grant-in-Aid for Scientific Research (A)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Inorganic chemistry
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| Research Institution | Kyoto University |
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Principal Investigator |
KAGEYMA Hiroshi 京都大学, 大学院・工学研究科, 教授 (40302640)
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| Co-Investigator(Kenkyū-buntansha) |
TAKANO Mikio 京都大学, 物質-細胞統合システム拠点, 教授 (70068138)
KAWAKAMI Takateru 日本大学, 理工学部, 講師 (20366561)
HAYASHI Naoaki 京都大学, 学際融合教育研究推進センター, 特定業務専門職員 (70346047)
OKADA Taku 東京大学, 物性研究所, 助教 (90343938)
GANESANPOTTI Subodh 京都大学, 工学研究科, 外国人特別研究員
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| Project Period (FY) |
2010 – 2012
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| Project Status |
Completed (Fiscal Year 2012)
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| Budget Amount *help |
¥47,840,000 (Direct Cost: ¥36,800,000、Indirect Cost: ¥11,040,000)
Fiscal Year 2012: ¥9,750,000 (Direct Cost: ¥7,500,000、Indirect Cost: ¥2,250,000)
Fiscal Year 2011: ¥18,330,000 (Direct Cost: ¥14,100,000、Indirect Cost: ¥4,230,000)
Fiscal Year 2010: ¥19,760,000 (Direct Cost: ¥15,200,000、Indirect Cost: ¥4,560,000)
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| Keywords | スピン転移 / 平面四配位鉄 / 高圧 X 線回折 / 高圧メスバウアー / 平面四配位 / 鉄酸化物 / 高圧 / 強磁性 / 酸化物 / 磁性 / 超伝導 / 鉄 / 高圧X線回折 |
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| Research Abstract |
We have obtained novel square planar iron oxides by Mn, Co, Lanthanoides substitution of SrFeO2. We have revealed origin of the pressure-induced spin transition (S = 2 to 1) in square planar iron oxides, and observed further pressure-induced spin transition (S = 1 to 0) in SrFeO2. Moreover, we have revealed that Eu substitution of SrFeO2 significantly decreases the spin transition pressure. We synthesized a new cubic Fe 4+ perovskite BaFeO3, and revealed that BaFeO3 is the first reported Fe oxide that shows ferromagnetism at ambient pressure
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Report
(4 results)
Research Products
(139 results)
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[Journal Article] BaFeO3, a Ferromagnetic Iron Oxide, Angewandte Chemie2011
Author(s)
Naoaki Hayashi,* Takafumi Yamamoto, Hiroshi Kageyama, Masakazu Nishi, Yoshitaka Watanabe, Takateru Kawakami, Yoshitaka Matsushita, Atsushi Fujimori, and Mikio Takano
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Journal Title
International Edition
Volume: 123巻
Issue: 52
Pages: 12755-12758
DOI
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Peer Reviewed
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[Presentation] New Iron Oxides by Soft Chemistry2012
Author(s)
Mikio Takano
Organizer
International Workshop on Transition-metal Oxides: Fundamental Chemistry and Physics to Designing Materials for Energy Storage (celebratin of the 90th birthday of Prof. John B. Goodenough)
Place of Presentation
AT&T Executive Education Conference Center （Austin, Texas, USA)
Related Report
Invited
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[Presentation] (Sr1-xBax)FeO2 (0.4 ≦ x ≦ 1): 新規酸素欠損型ペロブスカイト構造2012
Author(s)
山本 隆文, 小林 洋治, 林 直顕, セドリックタッセル, 齊藤 高志, 島川 祐一, 山中 昭司, 大山 研司, 吉村 一良, 高野 幹夫, 陰山 洋
Organizer
日本セラミックス協会第25回秋季シンポジウム
Place of Presentation
名古屋大学（愛知県）
Related Report
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[Presentation] Soft Chemical Route to Novel Iron Oxides2011
Author(s)
Hiroshi Kageyama
Organizer
International Workshop on Novel Superconductors and Super Materials 2011 (NS22011)
Place of Presentation
National Museurn of Emerging Future and Innovation (Miraikan), Tokyo, Japan
Year and Date
2011-03-07
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[Presentation] 21世紀の無機化学2010
Author(s)
陰山洋
Organizer
サイエンスレクチャーシリーズ
Place of Presentation
京都府立嵯峨野高等学校(京都府)(招待講演)
Year and Date
2010-12-13
Related Report
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