期刊
PHYSICAL REVIEW B
卷 102, 期 16, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.102.165427
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资金
- Ile-de-France Region of DIM SIRTEQ
- Ile-de-France Region of C'Nano Ile-de-France
- European Commission (H2020 program's ASTERIQS)
- Delegation Generale de l'Armement
We report the experimental study of the temperature dependence of the longitudinal spin relaxation time T-1 of single nitrogen-vacancy (NV) centers hosted in nanodiamonds. To determine the relaxation mechanisms at stake, measurements of the T-1 relaxation time are performed for a set of individual NV centers both at room and cryogenic temperatures. The results are consistant with a temperature-dependent relaxation process, which is attributed to a thermally activated magnetic noise produced by paramagnetic impurities lying on the nanodiamond surface. These results confirm the existence of surface-induced spin relaxation processes occurring in nanodiamonds, which are relevant for future developments of sensitive nanoscale NV-based quantum sensors.
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