Heat capacity of the high-temperature superconductor Ba2DyCu3O7
Tooru Atake, Yoshiki Takagi, Tetsurō Nakamura, Yasutoshi Saito
DOI 10.1103/PhysRevB.37.552 · Physical Review B
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Abstract
The high-temperature superconductor Ba2DyCu3O7 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 × JK−1 mol−1 which leads to the electronic heat-capacity coefficient γ of 28 mJ K−2 mol−1 in the weak-coupling limit of the Bardeen-Cooper-Schrieffer theory.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Ba2DyCu3O7 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 92.5 | Pressure not reported | unknown |
| Ba2DyCu3O7 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 92.5 | Pressure not reported | unknown |
| Ba2DyCu3O7 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 92.5 | Pressure not reported | unknown |
| Ba2YCu3O7 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 92 | Pressure not reported | unknown |
| La1.85Sr0.15CuO4 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 38 | Pressure not reported | unknown |
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