The most well-known example of an ordered quantum state—superconductivity—is caused
by the formation and condensation of pairs of electrons. Fundamentally, what distinguishes …

A growing number of superconducting materials display evidence for spontaneous time-
reversal symmetry breaking (TRSB) below their critical transition temperatures. Precisely …

We show that a two-dimensional semiconductor with Rashba spin-orbit coupling could be
driven into the second-order topological superconducting phase when a mixed-pairing state …

In general, magnetism and superconductivity are antagonistic to each other. However, there
are several families of superconductors in which superconductivity coexists with magnetism …

Recent work done on the time reversal symmetry (TRS) breaking superconductors is
reviewed in this paper. The special attention is paid to Sr 2 RuO 4 believed to be spin triplet …

Recent mean-field calculations suggest that the superconducting state of twisted bilayer
graphene exhibits either a nematic order or a spontaneous breakdown of the time-reversal …

Motivated by the recent observations of small Fermi energies and comparatively large
superconducting gaps, present also on bands not crossing the Fermi energy (incipient …

The symmetry of the pairing state in iron pnictide superconductor Ba 1− x K x Fe 2 As 2 is
still controversial. At optimal doping (x≈ 0.4), it is very likely s wave, but for x= 1 there are …

In general a superconducting state breaks multiple symmetries and, therefore, is
characterized by several different coherence lengths ξ i, i= 1,…, N. Moreover in multiband …

Recent experiments [Grinenko et al. Nat. Phys. 17, 1254 (2021) NPAHAX 1745-2473
10.1038/s41567-021-01350-9] reported the observation of a condensate of four-fermion …