Arts & Sciences Program

Faculty & Staff

Dr. Shunji Sugai Visiting Professor of Physics   Email: ssugai@pi.ac.ae Phone:+971-2-607-5257 (Bu Hasa) Office: 2109 (Bu Hasa)

Academic Qualifications

• Doctor of Science, Osaka University, Japan, 1976
• Master of Science, Department of Physics, Faculty of Science, Osaka University, 1971
• Bachelor of Science, Department of Physics, Faculty of Science, Osaka University, 1969

Experience

1995 to 2010	Professor,  Department of Physics, Faculty of Science, Nagoya University, Japan
1994 to 1995	Associate professor, Department of Physics, Faculty of Science, Osaka University, Japan
1973 to 1994	Assistant professor, Department of Physics, Faculty of Science, Osaka University, Japan
1971 to 1973	Panasonic Corporation, Japan

Research Interests

• Mechanism of high temperature superconductivity in cuprates and iron pnictides
• New physics in d-electron orbital ordered states
• New physics in spiral spin states

Teaching Interests

• Experiment of physics
• Solid state physics
• Statistical Physics

Selected Publications

1. Phonon, two-magnon, and electronic Raman scattering of Fe1+yTe1−xSex, K. Okazaki, S. Sugai, S. Niitaka, and H. Takagi, Physical Review B, 83, 035103  (2011).
2. Pairing symmetry of the multiorbital pnictide superconductor BaFe1.84Co0.16As2 from Raman scattering, S. Sugai, Y. Mizuno, K. Kiho, M. Nakajima, C. H. Lee, A. Iyo, H. Eisaki, and S. Uchida, Physical Review B, 82, 140504  (2010).
3. Independent Control of Low-Energy Resonant States and Polaron States by the Zn-Doping and the Structural Transition in La2-xSrxCuO4 and La2-xBaxCuO4 (x=0.11) , S. Sugai, T. Adachi, K. Sugiura, T. Takahashi, K. Obara, Y. Takayanagi, and  Y. Koike, Journal of  Superconductivity and novel magnetism  22, 313 (2009).
4. Spin and phonon contribution to the superconductivity in La2-xSrxCuO4, S. Sugai, Y. Takayanagi, N. Hayamizu, and T. Muroi, Journal of Physics and Chemistry of Solids 69, 3058 (2008).
5. Controlled Vaporization of the Superconducting Condensate in Cuprate Superconductors by Femtosecond Photoexcitation, P. Kusar, V.V. Kabanov, J. Demsar, T. Mertelj, S. Sugai, and D. Mihailovic, Physical Review Letters 101, 227001 (2008).
6. Isotope Effect on Superconducting Transition Temperature of NaxCoO2 .yH2O, M. Yokoi, Y. Kobayashi, M. Sato, and S. Sugai, Journal of the Physical Society of Japan 77, 094713 (2008)
7. s or d(xy) wave superconducting gap created from the electron-phonon coupled states in underdoped La2-xSrxCuO4, S. Sugai, Y. Takayanagi, N. Hayamizu, and T. Muroi, Journal of the Physical Society of Japan 77, 033705 (2008)
8. Correlation-driven heavy-fermion formation in LiV2O4, P. E. Jönsson, K. Takenaka, S. Niitaka, T. Sasagawa, S. Sugai, and H. Takagi, Physical Review Letters 99, 167402 (2007)
9. Electric Resistivity and Phase Diagram Viewed from Charges in La2-xSrxCuO4, S. Sugai, Y. Takayanagi, J. Nohara, R. Shiozaki, and K. Takenaka, Journal of the Physical Society of Japan 76, 43710 (2007).
10. Ultrafast Critical Dynamics of a Ferroelectric Phase Transition in Pb1-xGexTe, R. Lu, M. Hase, M. Kitajima, S. Nakashima, and S. Sugai, Physical Review Letters B 75, 012107 (2007).
11. Phason and Amplitudon in the Charge-Density-Wave Phase of One-Dimensional Charge Stripes in La2-xSrxCuO4, S. Sugai, Y. Takayanagi, and N. Hayamizu, Physical Review Letters 96, 137003 (2006).
12. Femtosecond pump–probe study of coherent soft phonon in Pb1-xGexTe ferroelectrics, R. Lu, M. Hase, M. Kitajima, S. Nakashima, and S. Sugai, Journal of Luminescence 119–120, 378 (2006).
13. Raman scattering of orbital waves in YTiO3, S. Sugai, A. Kikuchi, and Y. Mori, Physical Review B 73, 161101 (2006).
14. Orbital waves in YVO3 studied by Raman scattering, S. Sugai and K. Hirota, Physical Review B 73, 020409 (2006).
15. Role of electron-electron and electron-phonon interaction effects in the optical conductivity of VO2, K. Okazaki, S. Sugai, Y. Muraoka, Z. Hiroi, Physical Review B 73, 165116 (2006).