Magnetism and superconductivity in underscreened Kondo chains

N. Andrei, E. Orignac

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

We present a one-dimensional model of electrons coupled to localized moments of spin (Formula presented) 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 (Formula presented) chain, in the limit of strong Kondo coupling. Finally, we discuss briefly the effect of interchain coupling.

Original languageEnglish (US)
Pages (from-to)R763-R766
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume62
Issue number2
DOIs
StatePublished - 2000

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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