Isaac Kantor

Major: Physics
Mentors: Lillian Hughes, Professor Ania Jayich

PROBING SPIN BATH POPULATIONS IN DIAMOND WITH DOUBLE ELECTRON-ELECTRON RESONANCE

As a versatile and highly sensitive quantum sensor, the nitrogen vacancy (NV) center in diamond offers unprecedented capabilities for probing physical phenomena at the nanoscale. We aim to leverage ensembles of shallow NV centers to measure and characterize the many-body dynamics of coherently interacting electron spins deposited on a layer of noble gas atop the diamond surface. Using double electron-electron resonance (DEER) spectroscopy, we decouple the NVs from their surrounding spin bath while simultaneously and selectively recoupling the NVs to a target spin population, ensuring that our system is sensitive only to resonant spin populations. Here I present our work using DEER to identify spin populations at a nominally clean diamond surface, as these spins might hinder our ability to detect target spin populations in future experiments. Our findings inform future engineering of the diamond sample to better probe the deposited electron spins confined to the 2D layer of noble gas on the surface of the diamond.