| Co-Investigator(Kenkyū-buntansha) |
MATSUDA Yuji 京都大学, 大学院・理学研究科, 教授 (50199816)
SATO Noriaki 名古屋大学, 大学院・理学研究科, 教授 (30170773)
KAMBE Shinsaku 独立行政法人日本原子力開発機構, 先端基礎研究センター, 研究主席 (40224886)
IZAWA Koichi 東京工業大学, 大学院・理工学研究科, 准教授 (90302637)
FURUKAWA Hazuki お茶の水大学, 大学院・人間文化創成科学研究科, 教授 (70281649)
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| Budget Amount *help |
¥179,010,000 (Direct Cost: ¥137,700,000、Indirect Cost: ¥41,310,000)
Fiscal Year 2012: ¥23,010,000 (Direct Cost: ¥17,700,000、Indirect Cost: ¥5,310,000)
Fiscal Year 2011: ¥23,010,000 (Direct Cost: ¥17,700,000、Indirect Cost: ¥5,310,000)
Fiscal Year 2010: ¥18,460,000 (Direct Cost: ¥14,200,000、Indirect Cost: ¥4,260,000)
Fiscal Year 2009: ¥46,150,000 (Direct Cost: ¥35,500,000、Indirect Cost: ¥10,650,000)
Fiscal Year 2008: ¥68,380,000 (Direct Cost: ¥52,600,000、Indirect Cost: ¥15,780,000)
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| Research Abstract |
During last 5 years, the research group studied mainly to clarify the superconducting pairing state and mechanism on unconventional superconductors realized in the strongly correlated electron systems. In addition, quantum critical phenomena observed in various heavy-electron (HF) systems were studied. Main results are as follows,
(1)Two-dimensional HF state created with superlattice structure, in which quantum critical phenomena and strong-coupling superconductivity are observed.
(2)(1)Coexistence of ferromagnetism and superconductivity, (2)self-induced vortex state, (3)Superconductivity induced by Ising-type ferromagnetic fluctuations are suggested in UCoGe.
(3)Superconducting-gap structure determined by thermal conductivity measurement
(4)Breaking four-hold symmetry in the ``hidden-ordered’’ state on Uru_2Si_2
(5)Quantum criticality in Au-Al-Yb quasi-crystal
(6)Origin of magnetic instability in Usn_3 clarified with spin-dynamics properties
(7)Ferromagnetic quantum criticality in heavy-fermion Ce(Ru_<1-x>Fe_x)PO with a two-dimensional structure
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