| Project/Area Number |
20340093
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (B)
|
| Allocation Type | Single-year Grants |
|---|
| Section | 一般 |
|---|
| Research Field |
Condensed matter physics II
|
|---|
| Research Institution | Hiroshima University |
|---|
Principal Investigator |
SUZUKI Takashi 広島大学, 大学院・先端物質科学研究科, 教授 (00192617)
|
|---|
| 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)
|
|---|
| Project Period (FY) |
2008 – 2011
|
| Project Status |
Completed (Fiscal Year 2011)
|
| Budget Amount *help |
¥18,980,000 (Direct Cost: ¥14,600,000、Indirect Cost: ¥4,380,000)
Fiscal Year 2011: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2010: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2009: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2008: ¥8,060,000 (Direct Cost: ¥6,200,000、Indirect Cost: ¥1,860,000)
|
|---|
| 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 / マルチフェロイック / 交差相関 / 応力場 / 強磁性 / 強誘電性 / 強弾性 / 軌道秩序 / 超伝導 / 軌道磁性 / 物質開拓 / マルチフェロイックス / 多重極限物性 |
|---|
| 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.
|
