Heat capacity studies of RFe2 intermetallic compounds over the temperature region 1.5–10 K (R=Gd, Tb, Dy, Ho, Er, Tm and Lu)

Abstract

The heat capacities of the RFe₂ intermetallic compounds (R=Gd, Tb, Dy, Ho, Er, Tm, and Lu) have been measured over the temperature region 1.5–10 K. Values for the apparent electronic heat capacity coefficients have been determined and exhibit a cusp‐like behavior as the R atom is changed across the rare earth series going from Gd to Lu. The maximum is found to occur for HoFe₂.