Mass renormalizations and superconductivity in heavy-fermion UPt3
M. R. Norman
DOI 10.1103/PhysRevLett.59.232 · Physical Review Letters
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Abstract
The Eliashberg equations for magnetic fluctuations are solved for the case of UPt3. As input, the neutron data of Aeppli et al. are used for the spectral function, and the results of band-structure calculations are used to model the Fermi surface. The results indicate a mass renormalization factor of about 16, a value confirmed by comparisons of band calculations to de Haas–van Alphen data. Moreover, a superconducting transition temperature of the order of 0.1–0.2 K is calculated (due to the momentum dependence of the susceptibility) with polar gaps in parts of the zone.
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. | 0.15 | Pressure not reported | unknown |
| UPt3 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 0.5 | Pressure not reported | unknown |
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