"Possible unconventional superconductivity and weak magnetism in NaxCoO2i・yH2O probed by μSR"
W. Higemoto, K. Ohishi, A. Koda, R. Kadono, H. Sakurai, K. Takada, E. Takayama-Muromachi,and T. Sasaki, Physica B 374-375, 274-277 (2006). 引用先4