Tandem pairing in heavy-fermion superconductors

Rebecca Flint, Piers Coleman

Research output: Contribution to journalArticlepeer-review

29 Scopus citations

Abstract

We consider the internal structure of a d-wave heavy-fermion superconducting condensate, showing that it necessarily contains two components condensed in tandem: pairs of quasiparticles on neighboring sites and composite pairs consisting of two electrons bound to a single local moment. These two components draw upon the antiferromagnetic and Kondo interactions to cooperatively enhance the superconducting transition temperature. This tandem condensate is electrostatically active, with an electric quadrupole moment predicted to lead to a superconducting shift in the nuclear quadrupole resonance frequency.

Original languageEnglish (US)
Article number246404
JournalPhysical review letters
Volume105
Issue number24
DOIs
StatePublished - Dec 8 2010

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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