2010 Fiscal Year Final Research Report
Peculiar dielectric behavior in rare earth-transition metal oxides
Project/Area Number |
20550134
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Single-year Grants |
Section | 一般 |
Research Field |
Functional materials chemistry
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Research Institution | Japan Atomic Energy Agency |
Principal Investigator |
KENJI Yoshii Japan Atomic Energy Agency, 量子ビーム応用研究部門, 研究主幹 (90354985)
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Co-Investigator(Kenkyū-buntansha) |
IKEDA Naoshi 岡山大学, 理学部, 教授 (00222894)
YONEDA Yasuhiro 独立行政法人日本原子力研究開発機構, 量子ビーム応用研究部門, 研究副主幹 (30343924)
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Project Period (FY) |
2008 – 2010
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Keywords | 遷移金属酸化物 / 誘電性 / 電荷秩序 / 電子移動 |
Research Abstract |
We have reported the dielectric behavior of an electronic origin in RFe_2O_4-derived materials and perovskite manganese oxides ; this origin is entirely different from the ordinary ion-displacement mechanism. Such dielectric materials can be used for the fabrication of fatigue-free devices. In addition, some of these materials show high dielectric constants and can be prepared in a simple solid state method in air, the properties which are favorable to application.
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[Journal Article] Magnetic and dielectric study of R_<0.5>S_<r0.5>MnO_3 (R=Gd, Tb and Dy)2010
Author(s)
K.Yoshii, Y.Hiramitsu, Y.Okajima, Y.Yoneda, Y.Nishihata, J.Mizuki, A.Nakamura, Y.Shimojo, Y.Ishii, Y.Morii, N.Ikeda
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Journal Title
Mater.Res.Bull. 45
Pages: 1574-1580
Peer Reviewed
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[Journal Article] Stoichiometric study of dielectric and magnetic properties in charge-frustrated ferroelectric system LuFe_2O_42009
Author(s)
T.Michiuchi, Y.Yokota, T.Komatsu, H.Hayakawa, T.Kuroda, D.Maeda, Y.Matsuo, S.Mori, K.Yoshii, N.Hanasaki, T.Kambe, N.Ikeda
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Journal Title
Ferroelectrics 378
Pages: 175-180
Peer Reviewed
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[Presentation] 六方晶R(Fe,Ti)O_3(R=Yb,Lu)の誘電/磁気特性と微細構造2009
Author(s)
星山卓也,松尾祥史,森茂生,吉井賢資,道上勇一,神戸高志,池田直,フランシスコ・ブラウン,君塚昇
Organizer
第19回日本MRS学術シンポジウム
Place of Presentation
横浜市開港記念館(横浜市)
Year and Date
2009-12-07
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[Presentation] Preparation and properties of YbFe_<1-x>Ti_xO_<3+x/2>(0.72〓x〓0.75)2008
Author(s)
Y.Matsuo, S.Mori, Y.Michiue, Y.Matsushita, M.Tanaka, M.Suzuki, Y.Noguchi, K.Yoshii, N.Ikeda, F.Brown, N.Kimizuka
Organizer
The IUMRS International Conference in Asia 2008
Place of Presentation
名古屋国際会議場(名古屋市)
Year and Date
2008-12-09
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[Presentation] External Field Effect on the Charge Order Type Ferroelectrics LuFe_2O_42008
Author(s)
T.Michiuchi, Y.Yokota, T.Komatsu, H.Hayakawa, T.Kuroda, N.Naito, Y.Matsuo, S.Mori, K.Yoshii, N.Hanasaki, T.Kambe, N.Ikeda
Organizer
The 8th Russia/CIS /Baltic/Japan Symposium on Ferroelectricity
Place of Presentation
ビリニュス(リトアニア)
Year and Date
2008-06-16
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