ENV diamond DNV™ series

CVD

Element Six’s DNV™ B1 and DNV™ B14 products are ideal for those interested in employing NV ensembles for DC & AC magnetic field sensing, masers, RF detection, gyroscopes and quantum demonstrators. These grades of diamond are designed to provide the end-user with a uniform distribution of NV spin centres, in a small chip that may be readily integrated into a quantum device or employed in research experiments. Due to the differing levels of [NV] and residual [N] the two types of material have varying spin characteristics. The typical inhomogeneous transverse coherence time (T2*) is of order 1 µs for DNV B1, which is reduced to 0.5 µs for DNV B14 (see Figure 3). Hahn echo measurements measure a factor of 20 higher T2 in DNV B1 samples (of order 200 µs vs 10 µs). These values of [NV], T2 and T2* mean the two materials lend themselves to different sensing modalities/applications. For example, the greatly increased Hahn-echo T2 for DNV B1 means it is suited to AC magnetometry, whereas the increased [NV] in DNV B14 and only moderate reduction in T2* results in DNV B14 being applicable for DC-sensing magnetometry experiments.