On-going 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 Tf-R2CuO4 and R2PdO4

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

 

3.      Electronic structure and orbital states in Ca2-xSrxRuO4
[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