Home › Authors › Keiichiro Nasu 👤 Keiichiro Nasu 3 books Books by Keiichiro Nasu New many-body theories on soft x-ray spectroscopy of insulating solids 2003 Relaxations of Excited States Relaxations of Excited States and Photo-Induced Phase Transitions 1997 Relaxations of Excited States and Photo-Induced Structural Phase Transitions 1997