| Budget Amount *help |
¥19,760,000 (Direct Cost: ¥15,200,000、Indirect Cost: ¥4,560,000)
Fiscal Year 2015: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2014: ¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Fiscal Year 2013: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2012: ¥10,010,000 (Direct Cost: ¥7,700,000、Indirect Cost: ¥2,310,000)
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| Outline of Final Research Achievements |
The systems in which itinerant electrons interact with localized moments have been a central issue in condensed matter physics. We have theoretically investigated novel magnetism, electronic transport, and dynamics in such spin-charge coupled systems, especially, induced by geometrical frustration in the lattice structures. In particular, we have clarified the emergence of topological electronic structures under peculiar magnetic textures with noncollinear and noncoplanar spin superstructures, and the associated novel dynamics due to the surface, interface, and quantum dislocations, such as domain walls and vortices. As the representative outcomes, we have discovered the emergence of Dirac electronic state by spontaneous formation of spin textures and the multipole ordering and spin Hall effect induced by spontaneous breaking of spatial inversion symmetry.
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