| Project/Area Number |
21740249
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Condensed matter physics II
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| Research Institution | Tokyo Institute of Technology |
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Principal Investigator |
ONO Toshio Tokyo Institute of Technology, 大学院・理工学研究科, 助教 (40332639)
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| Co-Investigator(Renkei-kenkyūsha) |
TANAKA Hidekazu 東京工業大学, 大学院・理工学研究科, 教授 (80188325)
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| Project Period (FY) |
2009 – 2010
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| Project Status |
Completed (Fiscal Year 2010)
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| Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2010: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2009: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
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| Keywords | 物性実験 / 磁性フラストレーション系 / 磁性 / フラストレーション系 / 中性子散乱 / 低温物性 / 量子スピン系 / スピン液体 / カゴメ格子 |
|---|
| Research Abstract |
The ground states and the magnetic excitation spectra were investigated by means of the magnetic measurements and the neutron scattering experiments for new S=1/2 kagome antiferromagnets Rb_2Cu_3SnF_<12> and Cs_2Cu_3SnF_<12>. For Rb_2Cu_3SnF_<12>, the ground state is non-magnetic, and the spin state is described by "pinwheel" valence-bond-solid state. On the other hand, for Cs_2Cu_3SnF_<12>, q=0 spin structure is realized below Neel temperature T_N=20K. Detailed spin structure and the dispersion of the spin waves are under way.
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