On-going Research Projects

1. Photo-induced and pressure-induced transitions in Ta₂NiSe₅
[in collaboration with Prof. H. Takagi (Tokyo, MPI), Prof. K. Okazaki (Tokyo), Prof. H. Okamura(Tokushima)]

2. Charge-orbital fluctuations in 3d and 4d transition-metal oxides

[in collaboration with Prof. T. Katsufuji (Waseda)]

3. Electronic structure of WTe₂, MoTe₂, chiral IrGe₄

[in collaboration with Prof. Aoki (TMU)]

4. Electronic structure of SnSe and related thermoelectric materials

[in collaboration with Prof. M. G. Kanatzidis (Northwestern)]

5. XMLD-PEEM of antiferromagnets

[in collaboration with Prof. S. W. Cheong (Rutgers)]

6. Electronic structure of MnPSe₃

[in collaboration with Prof. S. W. Cheong (Rutgers)]

7. Electronic structure of BiS₂-based supercondcutors

[in collaboration with Prof. Y. Aoki (TMU), Prof. Y. Mizuguchi (TMU), Prof. Y. Takano (NIMS)]

8. Electronic structure of Fe-based superconductors

[in collaboration with Prof. K. Ohgushi (Tohoku), Dr. T. Ishida (AIST)]

9. Electronic structure of electron doped cuprate superconductors

[in collaboration with Prof. T. Adachi (Sophia)]

10. Electronic structure of IrTe₂

[in collaboration with Prof. M. Nohara (Okayama)]

11. Electronic structure of RuCl₃

[in collaboration with Prof. K. Ohgushi (Tohoku)]

12. Electronic structure of Li₂MnO₃

[in collaboration with Prof. M. Okubo (Waseda). Dr. D. Asakura (AIST)]

13. Electronic structure of MgTi₂O₄

[in collaboration with Prof. Y. Ueda (Tokyo)]

14. Electronic structure of MAPbI₃

Previous Research Projects

1. Electronic structure of Cu-O chains in PrBa₂Cu₄O₈ and Pr₂Ba₄Cu₇O₁₅
[in collaboration with Prof. Y. Yamada (Niigata), Prof. H. Ikuta (Nagoya)]

2. Electronic structure of T’-R₂CuO₄ and R₂PdO₄

[in collaboration with Prof. M. Kato, Prof. Y. Koike (Tohoku)]

3. Electronic structure and orbital states in Ca_2-xSr_xRuO₄
[in collaboration with Prof. Y. Maeno (Kyoto), Prof. S. Nakatsuji (Tokyo)]

4. Electronic structure of Co oxides with triangular lattice
[in collaboration with Prof. Y. Miyazaki, Prof. T. Kajitani (Tohoku), Prof. I. Tekasaki (Waseda)]

5. Electronic structure of perovskite-type Mn oxide TbMnO₃
[in collaboration with Prof. Y. Tokura (Tokyo), Prof. T. Kimura(Osaka)]

6. Electronic structure of Ni and Fe sulfides with triangular lattice
[in collaboration with Prof. Y. Maeno (Kyoto), Prof. S. Nakatsuji (Tokyo)]

7. Electronic structure of Li(Mn,Ni)O₂
[in collaboration with Prof. G. Chen (Jilin)]

8. Electronic structure of nano-LiCoO2, new battery material

[in collaboration with Prof. I. Honma (AIST)]

9. Photo-induced valence transition of Au complex
[in collaboration with Prof. N. Kojima (Tokyo)]

10. Photo-induced metal-insulator transition in Ir spinel CuIr₂S₄

[in collaboration with Prof. S. Nagata (Muroran)]

11. Photo-induced metal-insulator transition at SrTiO₃ surface

[in collaboration with Prof. S. Kosihara (Tokyo)]

12. Electronic structure of transition-metal impurity in rutile TiO₂

[in collaboration with Prof. M. Kawasaki (Tohoku)]

13. Electronic structure of transition-metal impurity in spinel MgAl₂O₄

[in collaboration with Prof. E. Hanamura (Chitose)]

14. Electronic structure of A-site double perovskite CaCu₃Ru₄O₁₂, CaCu₃Co₄O₁₂

[in collaboration with Prof. I. Terasaki (Waseda), Prof. M. Azuma, Prof. Y. Shimakawa,

Prof. M. Takano (Kyoto), Prof. Y. Maeno (Kyoto)]

15. Electronic structure of Ta₂NiSe₅

[in collaboration with Prof. M. Nohara, Prof. H. Takagi (Tokyo)]

16. Development of new inverse-photoemission method using dispersion matching

17. Development of new time-of-flight photoemission spectroscopy