Abstract
Diamond has exceptional properties, thanks in particular to defects in its crystal structure, such as NV (nitrogen-lacquer) centers. Optical detection and electron spin manipulation of these artificial atoms make it possible to measure magnetic fields in environments where other sensors fail. These properties have led to numerous applications, with commercial devices already available. These advances are based on the mastery of diamond CVD synthesis and defect engineering. In particular, I'll describe how NV centers can be used to study the superconducting properties of high-pressure materials in diamond anvil cells.
