S. Niitaka

Publication List Details

Period

2001 - 2008

Number

3

Co-Authors

X-ray absorption and x-ray magnetic dichroism study on Ca3CoRhO6 and Ca3FeRhO6 (2008)

Burnus, T., Hu, Z., Wu, Hua, Cezar, J. C., Niitaka, S., Takagi, H., ...

Using x-ray absorption spectroscopy at the Rh-L_2,3, Co-L_2,3, and Fe-L_2,3 edges, we find a valence state of Co^2+/Rh^4+ in Ca3CoRhO6 and of Fe^3+/Rh^3+ in Ca3FeRhO6. X-ray magnetic circular...

Electron Correlation Driven Heavy-Fermion Formation in LiV2O4 (2007)

Jönsson, P. E., Takenaka, K., Niitaka, S., Sasagawa, T., Sugai, S., Takagi, H.

Optical reflectivity measurements were performed on a single crystal of the d-electron heavy-fermion (HF) metal LiV2O4. The results evidence the highly incoherent character of the charge dynamics for...