Magnetism and superconductivity in underscreened Kondo chains

Abstract

We present a one dimensional model of electrons coupled to localized moments of spin $S\ge 1$ 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. A non-conventional 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.

no figures, 4 two column pages, RevteX

References in corpus (3)

• Low energy dynamics of the one dimensional multichannel Kondo-Heisenberg Lattice
• Composite Pairings in Chirally Stabilized Critical Fluids
• The underscreened Kondo effect in ladder systems

Cited by in corpus (4)

• Criticality in self-dual sine-Gordon models
• The underscreened Kondo lattice model applied to heavy fermion uranium compounds
• A Model with Propagating Spinons beyond One Dimension
• Ordering and criticality in an underscreened Kondo chain