Figure 1
Illustration: Alan Stonebraker

Figure 1: Fermi surfaces and nodal manifolds of 3D superconducting gaps discussed here. (Left) A type of state on a hole Fermi surface sheet which emerges from microscopic spin fluctuations calculations [12]. (Center) A similar state on a hole Fermi sheet with horizontal line nodes which might explain the results of Ref. [4]. (Right) The electron Fermi sheet. Solid blue lines represent gap nodes, while dashed blue lines represent deep gap minima.