https://phys.org/news/2018-06-materials-random-enable-quantum.html > "We have presented a method of fabricating topological materials in amorphous systems with randomly placed constituents. This means we can achieve superconductivity in the material by sprinkling magnetic atoms on a superconducting surface completely at random, not in highly-defined and ornamented lattices, for example," explains doctoral student Kim Pöyhönen. > The recent boom on topological superconductors stems mainly from an unconventional quantum-level phenomenon, a collective movement of many individual particles called Majorana fermion excitations. They have been envisioned as critical ingredients of topological quantum computers.