Magnetism and superconductivity in underscreened Kondo chains

N. Andrei; E. Orignac

doi:10.1103/PhysRevB.62.R763

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Magnetism and superconductivity in underscreened Kondo chains

N. Andrei, E. Orignac

DOI 10.1103/PhysRevB.62.R763 · Physical Review B

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Abstract

We present a one-dimensional model of electrons coupled to localized moments of spin S>~1 in which magnetism and superconductivity interplay in a nontrivial manner. This model has a non-Fermi-liquid ground state of the chiral spin liquid type. An unconventional odd-frequency pairing is shown to be the dominant instability of the system, together with antiferromagnetism of the local moments. We argue that this model captures the physics of the Kondo-Heisenberg spin S=1 chain, in the limit of strong Kondo coupling. Finally, we discuss briefly the effect of interchain coupling.

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Formula	Reported Tc (K)	Pressure (GPa)	Type
URu2Si2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown