Heat capacity of YBa2Cu3O7−δ at the superconducting transition temperature
M. V. Nevitt, G. W. Crabtree, T. E. Klippert
DOI 10.1103/PhysRevB.36.2398 · Physical Review B
Active bibliographic source — not scientific approval
Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.
Abstract
The specific heat of a single phase sample of YBa2Cu3O7−δ is measured over the temperature range 3-400 K, revealing a discontinuity at Tc of ΔCpTc=55 mJ (molef.u.)−1 K−2, where mole f.u. denotes mole formula unit. Magnetic susceptibility measurements give a temperature-independent contribution of 3.06×10−4 emu (molef.u.)−1. These two measurements suggest that ΔCpγTc is near the weak-coupling BCS value of 1.43. Comparable measurements reported by other investigators on this compound and on La1.85Sr0.15CuO4 are cited and discussed.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| YBa2Cu3O6.85 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 93 | Pressure not reported | midpoint |
| YBa2Cu3O6.85 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 93 | Pressure not reported | midpoint |
| La1.85Sr0.15CuO4 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 31 | 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. | 36.5 | 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. | 36 | 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. | 37 | Pressure not reported | unknown |
| YBa2Cu3O7-δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 90 | Pressure not reported | unknown |
| YBa2Cu3O7-δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 92.2 | Pressure not reported | unknown |
| YBa2Cu3O7-δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 92 | Pressure not reported | unknown |
Similar papers
Heat capacity of the high-temperature superconductor Ba2DyCu3O7
similarity 0.97Tooru Atake et al.
Source status unknown — claims are unverified
Heat-capacity investigations near the normal-superconducting transition of YBa2Cu3O7
similarity 0.97B. Zhou et al.
Source status unknown — claims are unverified
Specific Heat of YBa2Cu3O7: Origin of the "Linear" Term and Volume Fraction of Superconductivity
similarity 0.96Norman E. Phillips et al.
Source status unknown — claims are unverified
Excitonic absorption and superconductivity in YBa2Cu3O7−y
similarity 0.96K. Kamarás et al.
Source status unknown — claims are unverified
Superconducting-state thermal transport in YBa2Cu3O7−δ
similarity 0.96J. L. Cohn et al.
Source status unknown — claims are unverified
Specific heat of single crystals of YBa2Cu3O7−δ: Fluctuation effects in a bulk superconductor
similarity 0.96S. E. Inderhees et al.
Source status unknown — claims are unverified