When magnetic atoms are inserted inside a superconductor, the superconducting order is locally depleted as result of antagonistic nature magnetism and superconductivity. Thereby, distinctive spectral features, known Yu–Shiba–Rusinov states, appear gap. The search for states in different materials intense, they can be used building blocks to promote Majorana modes suitable topological quantum co...

When a topological insulator is made into nanowire, the interplay between topology and size quantization gives rise to peculiar one-dimensional states whose energy dispersion can be manipulated by external fields. In presence of proximity-induced superconductivity, these 1D offer tunable platform for Majorana zero modes. While existence such has been experimentally confirmed, realization robust...