Abstract
The reduction in transition temperature that occurs as oxygen is removed from is accompanied by a rapid decrease in the size of the heat-capacity anomaly at . We treat the fluctuation effects in the context of XY-like behavior and demonstrate that their dependence on the transition temperature agrees in detail with a relationship between and the hole concentration proposed by Schneider and Keller. Further, we show that this empirical relationship can be understood by combining scaling arguments with the nearly antiferromagnetic Fermi-liquid model of Monthoux and Pines.
- Received 7 June 1993
DOI:https://doi.org/10.1103/PhysRevB.48.16188
©1993 American Physical Society