Abstract
The high-temperature superconductor Ba/sub 2/DyCu/sub 3/O/sub 7/ has been prepared, and characterized by electrical resistivity and dc magnetic susceptibility measurements. The heat capacity has been measured by an adiabatic calorimeter between 14 and 300 K. A typical second-order type of anomaly is observed due to the superconducting phase transition at 92.5 K. The heat-capacity jump at the transition point is obtained as 3.7 x JK/sup -1/ mol/sup -1/ which leads to the electronic heat-capacity coefficient ..gamma.. of 28 mJ K/sup -2/ mol/sup -1/ in the weak-coupling limit of the Bardeen-Cooper-Schrieffer theory.
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