Inorganic Complex Electron Systems Research Team
Team Leader
Hidenori TAKAGI (D.Eng.)
Complex electron systems are at the frontier of development of materials with novel electronic functions. We aim to explore the physics and chemistry of such complex electron systems and to develop novel functionalities based on the concept of electronic phase and phase change. We develop new inorganic materials with high-Tc superconductivity, high performance thermoelectric conversion and novel device functions. We are also constructing a basis for the design of functionalities through understanding of the microscopic nature of complex electrons.
- Novel superconductors and new functional materials
- Functional devices based on complex electron systems
- Frontier probe and theoretical calculation method
- K. Ohgushi, A. Yamamoto, Y. Kiuchi, C. Ganguli, K. Matsubayashi, Y. Uwatoko, and H. Takagi,:
"Superconducting Phase at 7.7 K in the HgxReO3 Compound with a Hexagonal Bronze Structure"
Physical Review Letters 106, 017001 (2011) - K. Okazaki, S. Sugai, S. Niitaka, and H. Takagi,:
"Phonon, two-magnon, and electronic Raman scattering of Fe1+yTe1-xSex"
Physical Review B 83, 035103 (2011) - H. Takagi, Harold Y. Hwang,:
"An Emergent Change of Phase for Electronics"
Science 327, 1601 (2010) - A. Yamamoto, D. Hashizume, H. A. Katori, T. Sasaki, E. Ohmichi, T. Nishizaki, N. Kobayashi, and H. Takagi,:
"Ten layered hexagonal perovskite Sr5Ru5-xO15 (x = 0.90), a weak ferromagnet with a giant coercive field Hc ~ 12 T"
Chemistry of Materials 22, 5712 (2010) - Titus Neupert, Shigeki Onoda, and Akira Furusaki,:
"Chain of Majorana states from superconducting Dirac fermions at a magnetic domain wall"
Physical Review Letters 105, 206404 (2010) - T. Hikihara, T. Momoi, A. Furusaki, and H. Kawamura,:
"Magnetic phase diagram of the spin-1/2 antiferromagnetic zigzag ladder"
Phys. Rev. B 81, 224433 (2010) - T. Hanaguri, K. Igarashi, M. Kawamura, H. Takagi, and T. Sasagawa,:
"Momentum-resolved Landau-level spectroscopy of Dirac surface state in Bi2Se3"
Physical Review B 82, 081305 (2010) - K. Kodama, S. Iikubo, K. Takenaka, M. Takigawa, H. Takagi, and S. Shamoto,:
"Gradual development of Γ5g antiferromagnetic moment in the giant negative thermal expansion material Mn3Cu1-xGexN (x similar to 0.5)"
Physical Review B 81, 22 .224419 (2010) - T. Hanaguri, S. Niitaka, K. Kuroki, and H. Takagi,:
"Unconventional s-Wave Superconductivity in Fe(Se,Te)"
Science 328, 474 (2010) - Y. Kohsaka, C. Taylor, P. Wahl, A. Schmidt, Jhinhwan Lee, K. Fujita, J. W. Alldredge, K. McElroy, Jinho Lee, H. Eisaki, S. Uchida, D. -H. Lee, and J. C. Davis,:
"How Cooper pairs vanish approaching the Mott insulator in Bi2Sr2CaCu2O8+d"
Nature 454, 1072 (2008)
Principal Investigator
- Hidenori TAKAGI
- Team Leader
Staff Scientist
- Shigeki ONODA
- Senior Research Scientist
- Tetsuo HANAGURI
- Senior Research Scientist
- Tsutomu MOMOI
- Senior Research Scientist
- Shigeki FUJIYAMA
- Senior Research Scientist
- Seiji NIITAKA
- ASI Research Scientist
- Yuhki KOHSAKA
- ASI Research Scientist
- Ayako YAMAMOTO
- ASI Research Scientist