Magnetization in the superconducting state of UPt3 from polarized neutron diffraction
W. J. Gannon, W. P. Halperin, C. Rastovski, M. R. Eskildsen, Pengcheng Dai, A. Stunault
DOI 10.1103/PhysRevB.86.104510 · Physical Review B
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Abstract
The heavy-fermion superconductor UPt3 is thought to have odd parity, a state for which the temperature dependence of the spin susceptibility is an important signature. In order to address conflicting reports from two different experiments, the NMR Knight shift and measurements of the anisotropy of the upper critical field, we have measured the bulk susceptibility in a high-quality single crystal using polarized neutron diffraction. A temperature-independent susceptibility was observed for H∥a through the transitions between the normal state and the superconducting A, B, and C phases, consistent with odd-parity, spin-triplet superconductivity.
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. | 0.56 | Pressure not reported | unknown |
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