| Budget Amount *help |
¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2015: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2014: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2013: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
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| Outline of Final Research Achievements |
We performed neutron and synchrotron X-ray scattering study of high-Tc cuprate supeconductors to see entire magnetic escitations. The results shows that the magnetic excitation can be described by two components: one is high-energy dispersing excitation which reflects local interaction between spins, and the other is the low-energy compoment which reflects the itinerant character of the system. Detailed neutron scattering study of low energy magnetic component and the lattice dynamics, we found that the magnetic excitation strongly enhances at the energy where a certain phonon branch crosses, indicating a possible spin-lattice coupling. These results are important regarding the contribution of magnetic excitation to the superconductivity.
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