We are building a scanning probe microscope to study spin and charge on the nanoscale. The magnetic sensing element is a nitrogen-vacancy center (NV) in diamond, which should afford single electron spin sensitivity with 10 nm spatial resolution.
Schematic of diamond-based scanning probe magnetometer
Confocal fluorescence images showing relative locations of NV and Gd-functionalized tip
T1 reduced by ~1000x with nanoscale control
