2011 Fiscal Year Final Research Report
Development of novel multiferroics with stress field cross correlation
| Project/Area Number |
20340093
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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 | Hiroshima University |
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Principal Investigator |
SUZUKI Takashi 広島大学, 大学院・先端物質科学研究科, 教授 (00192617)
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| Co-Investigator(Renkei-kenkyūsha) |
NAKAMURA Fumihiko 広島大学, 大学院・先端物質科学研究科, 助教 (40231477)
INOUE Katsuya 広島大学, 大学院・理学研究科, 教授 (40265731)
OGUCHI Tamio 大阪大学, 産業科学研究所, 教授 (90253054)
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| Project Period (FY) |
2008 – 2011
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| Keywords | 分子性固体 / 有機化合物 / 希土類化合物 / 多重極限 / 熱力学量 / 超音波 |
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| Research Abstract |
In material development of organic compounds(AA)_2TX_4 with K_2NiF_4 type structure, we established very fast single-crystal growing technique for the compound with Fe, Ma, Co, Cu, Zn. We found electric dipole ordering at 26 and 37K in EACuC for the first time and show it is a potential multiferroic. We determined space groups of all structural phases of EAFeC. In EACuC, we also determined space group of each structural phase and corrected previous reports. In turn, on potential of multiferroic in rare earth compound, we found antiferroquarupolar ordering in PrIr_2Zn_<20>. The quadrupolar fluctuation is pointed out as the potential origin for the novel superconductivity in this material. These findings may contribute to develop a new technology which controls superconductivity by the stress fields.
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[Journal Article] Antiferro-quadrupolar Ordering at the Lowest Temperature and Anisotropic Magnetic Field-Temperature Phase Diagram in the Cage Compound PrIr_2Zn_<20>2011
Author(s)
I. Ishii, H. Muneshige, Y. Suetomi, T. K. Fujita, T. Onimaru, K. T. Matsumoto, T. Takabatake, K. Araki, M. Akatsu, Y. Nemoto, T. Goto and T. Suzuki
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Journal Title
J. Phys. Soc. Jpn
Volume: 80
Pages: 093601(4)
Peer Reviewed
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[Journal Article] Superconductivity and Structural PhaseTransitions in Caged Compounds RT_2Zn_<20>(R=La, Pr, T=Ru, Ir)2010
Author(s)
T. Onimaru, K. Matsumoto, Y. F. Inoue, K. Umeo, Y. Saiga, Y. Matsushita, R. Tamura, K. Nishimoto, I. Ishii, T. Suzuki and T. Takabatake
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Journal Title
J. Phys. Soc. Jpn.
Volume: 79
Pages: 033704(4)
Peer Reviewed
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[Presentation] PrRh_2Zn_<20>の弾性率2012
Author(s)
石井勲, 宗重仁士, 上川修平, 末冨靖彦, 藤田貴弘, 鬼丸孝博, 長澤直裕, 高畠敏郎, 阿野元貴, 赤津光洋, 根本祐一, 後藤輝孝, 鈴木孝至
Organizer
日本物理学会第67回年次大会
Place of Presentation
関西学院大学西宮上ケ原キャンパス
Year and Date
20120324-27
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[Presentation] ErB_4の弾性特性2012
Author(s)
藤田貴弘, 末富靖彦, 宗重仁士, 石井勲, 道村真司, 伊賀文俊, 鈴木孝至
Organizer
日本物理学会第67回年次大会
Place of Presentation
関西学院大学西宮上ケ原キャンパス
Year and Date
20120324-27
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[Presentation] PrIr_2Zn_20の弾性特性2010
Author(s)
石井勲, 末富靖彦, 宗重仁士, 藤田貴弘, 鬼丸孝博, 松本圭介, 高畠敏郎, 鈴木孝至
Organizer
日本物理学会2010年秋季大会
Place of Presentation
大阪府立大中百舌鳥キャンパス
Year and Date
20100923-26
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