This review elaborates pedagogically on the fundamental concept, basic theory, expected
properties, and materials realizations of topological superconductors. The relation between …

Topological superconductors are novel classes of quantum condensed phases,
characterized by topologically nontrivial structures of Cooper pairing states. On the surfaces …

Spin-triplet superconductors are condensates of electron pairs with spin 1 and an odd-parity
wavefunction. An interesting manifestation of triplet pairing is the chiral p-wave state, which …

In all known fermionic superfluids, Cooper pairs are composed of spin-1/2 quasi-particles
that pair to form either spin-singlet or spin-triplet bound states. The “spin” of a Bloch electron …

Two topics of high current interest in the field of unconventional superconductivity are
noncentrosymmetric superconductors and multiband superconductivity. Half-Heusler …

Determination of the symmetry property of superconducting gaps has been a central issue in
studies to understand the mechanisms of unconventional superconductivity. Although it is …

Chiral superconductors are novel topological materials with finite angular momentum
Cooper pairs circulating around a unique chiral axis, thereby spontaneously breaking time …

We study the topological stability of nodes in nonsymmorphic superconductors (SCs). In
particular, we demonstrate that line nodes in nonsymmorphic odd-parity SCs are protected …

The vortex of iron-based superconductors is emerging as a promising platform for Majorana
zero mode, owing to a magic integration among intrinsic vortex winding, non-trivial band …

The fragility of the chiral surface current of the (dzx+ idyz)-wave superconductor, a potential
candidate for Sr 2 RuO 4 against surface roughness is demonstrated utilizing the …