Inherent spin-density-wave instability in heavy-fermion superconductivity

Journal Article · Mon May 11 00:00:00 EDT 1987 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.58.1986· OSTI ID:6878734

Machida, K; Kato, M

Both anisotropic superconducting states (SC) 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. 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 (U/sub 1-//sub x/Th/sub x/)Be/sub 13/ is interpreted in terms of the spin-density-wave instability.

• Research Organization: Department of Physics, Kyoto University, Kyoto, Japan
• OSTI ID: 6878734
• Journal Information: Phys. Rev. Lett.; (United States), Vol. 58:19
• Country of Publication: United States
• Language: English

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36 MATERIALS SCIENCE
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
BERYLLIUM ALLOYS
COOPER PAIRS
SUPERCONDUCTIVITY
THORIUM ALLOYS
URANIUM ALLOYS
INSTABILITY
PALLADIUM ALLOYS
PARITY
PLATINUM ALLOYS
RUBIDIUM ALLOYS
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360104* - Metals & Alloys- Physical Properties
656100 - Condensed Matter Physics- Superconductivity