New superconductors can be built atom by atom, researchers show

https://phys.org/news/2023-07-superconductors-built-atom.html

"new matter states... moved and deposited the atoms in the right place with atomic precision. The same method was also used to measure the system's magnetic and superconductive properties. By depositing chromium atoms on the surface of superconducting niobium, the researchers were able to create two new types of superconductivity... two-dimensional superconductors with this approach"

Related: Scientists present diamond substrate coated with niobium carbide film for superconducting detectors

https://phys.org/news/2024-02-scientists-diamond-substrate-coated-niobium.html