| Co-Investigator(Kenkyū-buntansha) |
瀬川 耕司 京都産業大学, 理学部, 教授 (20371297)
柏谷 聡 名古屋大学, 工学研究科, 教授 (40356770)
塚崎 敦 東北大学, 金属材料研究所, 教授 (50400396)
田仲 由喜夫 名古屋大学, 工学研究科, 教授 (40212039)
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| Budget Amount *help |
¥315,900,000 (Direct Cost: ¥243,000,000、Indirect Cost: ¥72,900,000)
Fiscal Year 2019: ¥36,400,000 (Direct Cost: ¥28,000,000、Indirect Cost: ¥8,400,000)
Fiscal Year 2018: ¥54,210,000 (Direct Cost: ¥41,700,000、Indirect Cost: ¥12,510,000)
Fiscal Year 2017: ¥67,080,000 (Direct Cost: ¥51,600,000、Indirect Cost: ¥15,480,000)
Fiscal Year 2016: ¥62,920,000 (Direct Cost: ¥48,400,000、Indirect Cost: ¥14,520,000)
Fiscal Year 2015: ¥95,290,000 (Direct Cost: ¥73,300,000、Indirect Cost: ¥21,990,000)
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| Outline of Final Research Achievements |
We have explored novel topological materials based on crystal symmetry and investigated emergent quantum phenomena and exotic quasiparticles associated with the topological properties of such materials. By combining state-of-the-art bulk-crystal-growth / molecular-beam-epitaxy techniques and advanced spectroscopies such as spin-ARPES and tunneling microscopy, we established controllability of Dirac fermions at the surface and interface of topological insulators. Moreover, we discovered several new types of topological semimetals, as represented by noncentrosymmetric Weyl semimetals, topological semimetals with new chiral fermions, and line-node semimetals protected by the nonsymmorphic symmetries of crystal. We have also conducted experiments on superconducting hybrids/junctions to pin down pairing symmetry, and found several new topological-superconductor candidates. By introducing the concept of topology, new insights in the physics of odd-frequency Cooper pairing were also obtained.
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