Excited-State Optically Detected Magnetic Resonance of Spin Defects in Hexagonal Boron Nitride
Excited-State Optically Detected Magnetic Resonance of Spin Defects in Hexagonal Boron Nitride
Negatively charged boron vacancy (V_{B}^{-}) centers in hexagonal boron nitride (h-BN) are promising spin defects in a van der Waals crystal. Understanding the spin properties of the excited state (ES) is critical for realizing dynamic nuclear polarization. Here, we report zero-field splitting in the ES of D_{ES}=2160 MHz and its …