Determining the position of a single spin relative to a metallic nanowire

Abstract

The nanoscale localization of individual quantum defects near an electrical circuit is an important step for realizing hybrid quantum devices with strong spin-microwave photon coupling. Here, we demonstrate the fabrication of an array of individual NV centers in diamond near a metallic nanowire deposited on top of the substrate. We determine their relative position with ∼10 nm accuracy, using the NV center as a vector magnetometer to measure the field generated by passing a dc current through the wire.