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=vF/Δ0) carry a finite density of states N(0)≈mkf/π2 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 language | English |
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Pages (from-to) | 451-460 |
Number of pages | 10 |
Journal | Journal of Low Temperature Physics |
Volume | 72 |
Issue number | 5-6 |
DOIs | |
State | Published - Sep 1988 |
Externally published | Yes |