Possible Relevance of Odd Frequency Pairing to Heavy Fermion Superconductivity
P. COLEMAN, E. Miranda
Abstract
What is the character of the gapless quasiparticles in heavy fermion superconductors (HFSC)? We discuss an odd-frequency pairing interpretation of HFSC which leads to a two component model for the quasiparticle excitations. In this picture, line zeroes of unpaired electrons may coexist with gapless surfaces of paired electrons, with vanishing spin and charge coherence factors.
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