Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Heat capacity of the high-temperature superconductor Ba/sub 2/DyCu/sub 3/O/sub 7/

Journal Article · · Phys. Rev. B: Condens. Matter; (United States)
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.
Research Organization:
Research Laboratory of Engineering Materials, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama 227, Japan
OSTI ID:
5679927
Journal Information:
Phys. Rev. B: Condens. Matter; (United States), Journal Name: Phys. Rev. B: Condens. Matter; (United States) Vol. 37:1; ISSN PRBMD
Country of Publication:
United States
Language:
English