Techniques for probing 2D magnetism with quantum coherent spins

The evolution of magnetic devices towards atomically-thin materials and nanostructured devices has posed challenges for conventional probes of magnetic properties. Recently, magnetometry based on the nitrogen-vacancy (NV) center in diamond has emerged as a potentially non-invasive, quantitative, and spatially-resolved probe for two-dimensional condensed matter systems. In this talk, we discuss the development and optimization of techniques for characterizing 2D magnetic systems with NV center magnetometers. We comment on how the attributes of spin-based quantum sensors can elucidate unique perspectives on magnetic interactions, phase transitions, and spatial variations.