ArticleNature communications2026
Fermi-surface diagnosis for topological superconductivity with s-wave-like pairing symmetries.
Article in Nature communications, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Theoretical prediction of topological superconductivity is key to their discovery. Recently, it is proven that in 199 out of 230 space groups, topological superconductivity coexists with an s-wave-like pairing symmetry, raising the hope of finding more candidates for this exotic phase. However, a comprehensive and efficient method for diagnosing topological superconductivity in realistic materials remains elusive. Here, we derive Fermi-surface formulas for gapped and gapless topological phases of time-reversal symmetric superconductors with s-wave-like pairing symmetries in all layer and space groups, applicable to thin-film and bulk materials. Our diagnosis uses only the sign of the pairing and the Fermi velocity at several Fermi points, and yields complete (partial) diagnosis for gapped and gapless superconducting phases in 159 (71) space groups. This provides a fundamental basis for the first-principles prediction of new topological superconductors.
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