Abstract
The electronic contribution to the heat capacity of , , and is very large, with cal /mole V, respectively. Comparison of effective masses calculated from the heat capacity, magnetic susceptibility, and optical properties suggests that the mass enhancement results mainly from spin fluctuations in a strongly correlated electron gas. The magnetic contribution to the entropy of at 53 K is 0.32 cal /mole V.
- Received 12 July 1972
DOI:https://doi.org/10.1103/PhysRevB.7.326
©1973 American Physical Society