Scanning Nitrogen-Vacancy Center Magnetic Imaging

The NV center is a quantum probe that is sensitive to a variety of fields (magnetic, electric, thermal, strain), can achieve nanoscale spatial resolution, is non-invasive, and can operate over a wide range of temperatures; hence it is an ideal tool for studying novel phases of matter that often emerge only below a critical temperature. Here we use a cryogenic scanning NV magnetometer to probe materials that exhibit nanoscale magnetic phenomena often inaccessible to other experimental tools over a variety of temperatures.