UPt3: Specific heat, critical fields, and the Ginzburg-Landau models for the superconducting phase diagram
T. Vorenkamp, A. de Visser, R. Wester, A. A. Menovsky, J. J. M. Franse, E. A. Knetsch
DOI 10.1103/PhysRevB.48.6385 · Physical Review B
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Abstract
The superconducting phase diagram of UPt3 has three important features that can be described by a Ginzburg-Landau model. These features are (i) the double transition in zero field, observable as two peaks in the specific heat; (ii) the kink in the lower-critical-field curve Hc1(T); (iii) the kink in the upper-critical-field curve Hc2(T). We present the observation of all three features for one and the same high-quality sample. The resultant data are used to test the internal consistency of two recently published models for the superconducting phase diagram.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| UPt3 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 0.533 | Pressure not reported | onset |
| UPt3 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 0.558 | Pressure not reported | zero_resistance |
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