Abstract:
The correlation between the heat capacities of rare-earth cuprates, orthovanadates, and garnets with ionic radius $R^{3+}$ has been analyzed. It has been shown that the values of $C^0_p$ change consistently depending on the radius $R^{3+}$ within the corresponding tetrads (La–Nd, Pm–Gd, Gd–Ho, Eu–Lu).