Coexistence of Local Moment Magnetism and Heavy-Fermion Superconductivity in UPd2Al3
R. Feyerherm, A. Amato, F. N. Gygax, A. Schenck, C. Geibel, F. Steglich, N. Sato, T. Komatsubara
DOI 10.1103/PhysRevLett.73.1849 · Physical Review Letters
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Abstract
We report muon spin rotation measurements on the antiferromagnetic heavy-fermion superconductor UPd2Al3 in the superconducting state. The London penetration depth is found to be approximately isotropic, λ⊥(0)=4800±500 Å and λ∥(0)=4500±500 Å. The μ+ Knight shift behavior below Tc indicates that local moment magnetism and superconductivity are carried by different electron substrates of 5f character, one of which involves, the heavy quasiparticles. For the latter a nearly isotropic magnetic susceptibility χ=1.7×10−3 emu/mole can be estimated.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| UPd2Al3 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 1.7 | Pressure not reported | onset |
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