Structure and physical properties of RT2Cd20 (R=rare earth, T=Ni, Pd) compounds with the CeCr2Al20-type structure

Specific heat divided by temperature C/T vs. T for single crystals of R Ni2Cd20 (R=Y, La-Nd, Gd, and Tb). Left inset: Low temperature C/T vs. T2 for LaNi2Cd20. The solid line represents a linear fit of the data. Right inset: Low-temperature C/T data vs. T for R=Ce-Nd, Gd, and Tb; magnetic ordering temperatures are indicated by arrows.