Inherent Spin-Density-Wave Instability in Heavy-Fermion Superconductivity
Kazushige Machida, Masaru Kato
DOI 10.1103/PhysRevLett.58.1986 · Physical Review Letters
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Abstract
Both anisotropic superconducting (SC) states of heavy electrons with odd-parity p pairing and with even-parity d pairing are shown to have an inherent instability towards the spin-density wave which generally coexists with the SC state. A model is presented which contains an on-site repulsion characteristic of heavy-fermion materials, in addition to an intersite attraction. The second transition below the SC transition observed in (U1−xThx)Be13 is interpreted in terms of the spin-density-wave instability.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| UBe13 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| UPt3 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| CeCu2Si2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| (U1-xThx)Be13 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| URu2Si2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 0.8 | Pressure not reported | unknown |
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