Abstract

From values of the heat capacity of microcrystalline La(OH) 3, Gd(OH) 3, and Eu(OH) 3 determined by precise adiabatic calorimetry from near 10 to 350 K, the Schottky contribution associated with the low-lying J-manifolds of Eu(OH) 3 was resolved with the aid of a new lattice-heat-capacity approximation based upon volumetric interpolation between the lattice heat capacities of the La(OH) 3 and Gd(OH) 3 homologs. This calorimetrically deduced Schottky contribution to the heat capacity of Eu(OH) 3 was compared with the same contribution calculated from spectral data. Excellent accord was observed over the entire temperature range investigated. The experimental heat capacities of this study together with previously published low-temperature (0.45 to 18 K) magnetic and heat-capacity data for Gd(OH) 3 permit evaluation of thermophysical functions relative to T = 0 for each compound.

Full Text
Paper version not known

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.