Description: The heat capacities of erbium and yttrium ethylsulfates were measured in the range 12-300 deg K. The magnetic contribution of the erbium ion was evaluated with the help of an assumption concernlng the difference in lattice contributions between the erbium and yttrium salts. The contribution agrees, to within experimental error, with the experimental energy level scheme for the /sup 4/I/ sub 15/2/ state previously published. (auth)
Date: December 1, 1962
Creator: Gerstein, B.C.; Penney, C.J. & Spedding, F.H.
Partner: UNT Libraries Government Documents Department