Picometer-precision atom steering yields mesoscopic defect crystal in CrSBr
Researchers demonstrate deterministic atomic engineering inside CrSBr by steering Cr atoms with sub-20-pm accuracy to create a mesoscopic 3D defect crystal (~40,000 defects) within a 150×100×13 nm volume. The engineered lattice is stable at room temperature and opens routes for deterministic colour-centre placement, quantum simulations of many-body systems, and scalable atomic-scale manufacturing outside the microscope.