Ironing out the details of unconventional superconductivity

Superconducting Materials: Judge, Jury and Executioner of BCS-electron-phonon Theory

“…These other theories are expected to have their own distinct pairing mechanism, symmetry of the superconducting state, and defining physical characteristics, one or more of these different from BCS. Pairing symmetries "unconventional s" [16], d [17], p [18], s+/- [19], p+ip [20], d+id [21], f [22], g [23], physics involving spin fluctuations [25], resonating valence-bonds [26], Mott insulating state [27], strange metal [28], holographic duality [29], charge density waves [30], d-density waves [31], pair den-sity waves [32], Van Hove singularities [33], stripes [34], loop currents [35], pseudogaps [36], multibands [37], Lifshitz transitions/Fano resonances [38], excitons [39], plasmons [40], low dimensionality [41], polarons [42], bipolarons [43], Jahn-Teller physics [44], Dirac fermions [45], spin-momentum locking [46], anyons [47], topology [48], Majorana fermions [49], Weyl fermions [50,51], nematicity [52], quantum criticality [53], Hund coupling [54], vestigial order [55], intertwined order [56], Gossamer superconductivity [57], time-reversal symmetry-breaking…”