Gavin Morley’s group builds novel quantum technology instrumentation using spins in diamond and silicon. This includes optically levitated nanodiamonds, magnetic fields from zero to 14 T and temperatures from 2 K to 300 K. Within workpackage four of NQIT, and as part of other projects, the group is developing quantum sensors for magnetometry using nitrogen vacancy (NV) centres in diamond. Another NQIT goal is to characterize the coherence of a range of NV centres to be used as qubit nodes in optical cavities.