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A novel class of singlet superconductors

Alexander Balatsky·Elihu Abrahams
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Abstract

A new class of singlet superconductors with a gap function $Δ(\bk, ω_n)$ which is {\it odd} in both momentum and Matsubara frequency is considered. Some of the physical properties of this superconductivity are discussed and it is argued that: i) the electron-phonon interaction can produce this kind of pairing, ii) in many cases there is no gap in the quasiparticle spectrum, iii) these superconductors will exhibit a Meissner effect.

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Alexander Balatsky, Elihu Abrahams. 1992-04-10. A novel class of singlet superconductors. https://arxiv.org/abs/cond-mat/9204003

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