| Project/Area Number |
12640340
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
固体物性Ⅱ(磁性・金属・低温)
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| Research Institution | The University of Tokyo |
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Principal Investigator |
YOSHIZAWA Hideki The University of Tokyo, Institute for solid state physics, Professor, 物性研究所, 助教授 (00174912)
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| Project Period (FY) |
2000 – 2001
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| Project Status |
Completed (Fiscal Year 2001)
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| Budget Amount *help |
¥3,700,000 (Direct Cost: ¥3,700,000)
Fiscal Year 2001: ¥1,800,000 (Direct Cost: ¥1,800,000)
Fiscal Year 2000: ¥1,900,000 (Direct Cost: ¥1,900,000)
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| Keywords | rutenate / 2d super conductor / neutron scattering / 量子臨界点 / スピン揺動 / 中性子散乱実験 |
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| Research Abstract |
To study spin fluctuations in p-wave superconductor Sr_2RuO_4 which includes no Cu ions, we grow a large single crystal samples, and studied inelastic scattering spectra at the Japanese research reactor JRR-3M in JAERI, Toaki, Japan. The temperature dependence of the inelastic spin fluctuation spectra for 1.3 meV < E < 25 meV was observed and analyzed. The dynamical susceptibility increases below 〜 100K, and shows a sharp drop in the energy spectra. The energy width of the dynamical susceptibility follows a linear relation with temperature, but it accompanies with a large residual width 1 〜 8 meV, indicating its anomalous behavior of spin fluctuations.
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