Room Temperature DNP via Substitutional-Nitrogen (P1) Centers in Diamond

Electron spins in diamond have long coherence and relaxation times at room temperature, making them an exciting platform for EPR and DNP experiments under ambient conditions. In this talk I will describe our recent W-band DNP experiments using the substitutional nitrogen (or P1) defect to hyperpolarize the 13C spins in both single crystal and diamond powders. The DNP spectra measured in these samples show signatures of multiple mechanisms including the solid effect, the cross effect, the truncated cross effect and the Overhauser effect. I will discuss how variations in the microscopic environments of the spins could lead to these observations.

8:00AM California or 11:00 am Boston or 5:00 PM Paris or 9:30 PM Delhi