Abstract The nitrogen-vacancy (NV) centre in diamond is a promising candidate for quantum computing applications and magnetic sensing applications. because it is an atomic-scale defect with stable coherence time (T 2) and reliable accessibility at room temperature. We demonstrated a method for improving the NV spin properties (the full width half maximum (FWHM) value of the magnetic r... https://www.roneverhart.com/Doorking-1835-080-Telephone-Entry-System/