Magnetic-field dependence of the low-temperature specific heat of the electron-doped superconductor Pr1.85Ce0.15CuO4
W. Yu, B. Liang, R. L. Greene
DOI 10.1103/PhysRevB.72.212512 · Physical Review B
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Abstract
We remeasured the magnetic-field dependence of the low-temperature specific heat of the electron-doped superconductor Pr1.85Ce0.15CuO4 (TC=22±2K) under a different measurement procedure. Under field cooling, the electronic specific heat follows Cel(H,T)=γ(H)T from 4.5K down to 1.8K. In the field range HC1<H<0.5HC2, the Sommerfeld coefficient γ(H) is well fit by a power law γ(H)∼H1∕2. This result suggests that the pairing symmetry is d-wave-like at all temperatures below 4.5K. Our new measurement shows no evidence for the linear field dependence of γ(H) found previously at T=2K.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Pr1.85Ce0.15CuO4 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 22 | Pressure not reported | onset |
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