Journal
PHYSICAL REVIEW B
Volume 90, Issue 4, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.90.041201
Keywords
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Funding
- Australian Research Council under the Discovery Project scheme [DP0986635, DP120102232]
- NSF [ECCS-1202258]
- AFOSR/DARPA QuASAR program, NATO SFP, and IMOD
- Australian Research Council [DP0986635] Funding Source: Australian Research Council
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Significant attention has been recently focused on the realization of high precision nanothermometry using the spin-resonance temperature shift of the negatively charged nitrogen-vacancy (NV-) center in diamond. However, the precise physical origins of the temperature shift is yet to be understood. Here, the shifts of the center's optical and spin resonances are observed and a model is developed that identifies the origin of each shift to be a combination of thermal expansion and electron-phonon interactions. Our results provide insight into the center's vibronic properties and reveal implications for NV- thermometry.
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