Reduction of surface spin-induced electron spin relaxations in nanodiamonds
Reduction of surface spin-induced electron spin relaxations in nanodiamonds
Nanodiamonds (NDs) hosting nitrogen-vacancy (NV) centers are promising for applications of quantum sensing. Long spin relaxation times ($T_1$ and $T_2$) are critical for high sensitivity in quantum applications. It has been shown that fluctuations of magnetic fields due to surface spins strongly influences $T_1$ and $T_2$ in NDs. However, their …