| Budget Amount *help |
¥17,940,000 (Direct Cost: ¥13,800,000、Indirect Cost: ¥4,140,000)
Fiscal Year 2020: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Fiscal Year 2019: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2018: ¥13,000,000 (Direct Cost: ¥10,000,000、Indirect Cost: ¥3,000,000)
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| Outline of Final Research Achievements |
Cd2Re2O7 is a candidate for the spin-orbit-coupled metal (SOCM). SOCM is a metallic system characterized by a centrosymmetric crystal structure and conduction electrons with strong spin-orbit interactions. It has a specific Fermi liquid instability that causes spontaneous inversion symmetry breaking leading to unusual odd-parity multipolar orders. We prepared single crystals with the (001) surface and applied anisotropic stress to control the tetragonal domains. Resistivity measurements using single-domain crystals revealed anisotropy in resistivity as large as 25%, which turned over at Ts2 = 120 K. The origin of the large anisotropy must be spin-dependent scattering in the spin-split Fermi surfaces of the odd parity multipolar orders, which carry important information on the characteristics of the SOCM.
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