Detection of the Meissner Effect with a Diamond Magnetometer

Understand

We examine the possibility of probing superconductivity effects in metal nanoclusters via diamond magnetometry.

• Metal nanoclusters have been proposed as constitutive elements of high T$_c$ superconducting nanostructured materials.
• Magnetometry based on the detection of spin-selective fluorescence of nitrogen-vacancy (NV) centers in diamond is capable of nanoscale spatial resolution and could be used as a tool for investigating the properties of single or multiple clusters interacting among each other or with a surface.
• We have carried out sensitivity estimates and experiments to understand how these magnetometers could be used in such a situation.