Magnetic susceptibility of CeRu3Si2 and a scaling effect in mixed-valence compounds (original) (raw)

To investigate the mixed-valence (MV) state in CeRu 3 Si 2 , we measured the magnetic susceptibility wðTÞ in the temperature range 8-300 K. The magnetic susceptibility is constant below 100 K, and slightly increases with increasing temperature. We estimated the spin fluctuation temperature T sf by plotting wðTÞT=C against T; where C is the Curie constant of a Ce 3+ ion. CeRu 3 Si 2 is found to be a typical MV system, indicating that wðTÞT=C is a function of T=T sf : This scaling relation is applied to the other MV compounds such as CeSn 3 .