Search for unusual magnetic, electric and dielectric phenomena with contributions of s-electrons
| Project/Area Number |
19340098
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Condensed matter physics II
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| Research Institution | Kyoto University |
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Principal Investigator |
AZUMA Masaki Kyoto University, 化学研究所, 准教授 (40273510)
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| Co-Investigator(Kenkyū-buntansha) |
SHIMAKAWA Yuichi 京都大学, 化学研究所, 教授 (20372550)
SAITO Tkashi 京都大学, 化学研究所, 助教 (40378857)
MIZUMAKI Masaichiro 財)高輝度光科学研究センター, 利用研究促進部門動的構造クセループ, 副主任研究員 (60360830)
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| Project Period (FY) |
2007 – 2009
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| Project Status |
Completed (Fiscal Year 2009)
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| Budget Amount *help |
¥18,330,000 (Direct Cost: ¥14,100,000、Indirect Cost: ¥4,230,000)
Fiscal Year 2009: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2008: ¥5,720,000 (Direct Cost: ¥4,400,000、Indirect Cost: ¥1,320,000)
Fiscal Year 2007: ¥8,450,000 (Direct Cost: ¥6,500,000、Indirect Cost: ¥1,950,000)
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| Keywords | 強相関電子系 / 電子・電気材料 / 放射線・X線・粒子線 / 物性実験 / 放射線・X線・粒子 |
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| Research Abstract |
6s electrons of Bi greatly act on the crystallographic structure and the banded structure of a compound, and affect the electrical property. We searched for unusual magnetic, electrical and the dielectric properties in the perovskite compound where such Bi ion was arranged on A-site. Several peculiar phenomena such as absence of the long-range magnetic order in Bi_3Mn_4O_<12>(NO_3), an insulator to metal transition accompanied with a negative thermal expansion in Bi_<0.95>La_<0.05>NiO_3 and the enhancement of the piezoelectric property in BiFe_<1-x>Co_xO_3 were found.
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Report
(4 results)
Research Products
(39 results)
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[Journal Article] Synthesis, Crystal Structure, and Magnetic Properties of Bi3Mn4O12 (NO3) Oxynitrate Comprising S=3/2 Honeycomb Lattice2009
Author(s)
O Smirnova, M.Azuma, N.Kumada, Y.Kusano, M.Matsuda, Y.Shimakawa, T.Takei, Y.Yonesaki, N.Kinomura
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Journal Title
J.Am.Chem.Soc. 131
Pages: 8313-8317
Related Report
Peer Reviewed
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[Journal Article] Charge and magnetic orderings in the triangular-lattice antiferromagnet InFe2O42008
Author(s)
K. Oka, M. Azuma, N. Hayashi, S. Muranaka, Y. Narumi, K. Kindo, S. Ayukawa, M. Kato, Y. Koike, Y. Shimakawa, M. Takano
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Journal Title
J. Phys. Soc. Jpn. 77
Pages: 64803-64803
NAID
Related Report
Peer Reviewed
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[Patent(Industrial Property Rights)] 金属酸化物および圧電材料2009
Inventor(s)
久保田純, 三浦薫, 伊福敏博, 林潤平, 東正樹, スミルノワオルガアレキサンドロワ, 舟窪浩, 内田寛, 熊田伸弘, 和田智志, 飯島高志, 岡村総一郎
Industrial Property Rights Holder
キヤノン株式会社、国立大学法人京都大学、国立大学法人東京工業大学、学校法人上智学院、国立大学法人山梨大学、独立行政法人産業技術総合研究所、学校法人東京理科大学
Patent Publication Number
2010-053024
Filing Date
2009-07-24
Related Report
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