Spatial structure of the superconducting phase in heavy-fermion systems and anomalies in the excitation spectrum

L. I. Burlachkov, N. B. Kopnin

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2 Scopus citations

Abstract

A degenerate superconducting phase in a metal with strong spin-orbital coupling may have a domain structure at low temperatures. The domain walls (of width ∼ξ=vF0) carry a finite density of states N(0)≈mkf2 per unit volume, which in turn results in the presence of a linear term γT in the electronic specific heat Ce(T). With the help of the Atiyah-Singer theorem, this can be proved for a wide class of domain structures.

Original languageEnglish
Pages (from-to)451-460
Number of pages10
JournalJournal of Low Temperature Physics
Volume72
Issue number5-6
DOIs
StatePublished - Sep 1988
Externally publishedYes

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