Synthesis and coherent properties of 13C-enriched sub-micron diamond particles with nitrogen vacancy color centers

Here we report the synthesis of 13C-enriched diamond powder with sub-micron particle sizes via High Pressure High Temperature (HPHT) growth. Diamond powder with a tailored isotopic enrichment is particularly interesting for implementation of Dynamic Nuclear spin Polarization (DNP) and 13C enrichment...

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Vydáno v:Carbon (New York) Ročník 165; s. 395 - 403
Hlavní autoři: Mindarava, Yuliya, Blinder, Rémi, Liu, Yan, Scheuer, Jochen, Lang, Johannes, Agafonov, Viatcheslav, Davydov, Valery A., Laube, Christian, Knolle, Wolfgang, Abel, Bernd, Naydenov, Boris, Jelezko, Fedor
Médium: Journal Article
Jazyk:angličtina
Vydáno: New York Elsevier Ltd 15.09.2020
Elsevier BV
Elsevier
Témata:
13C isotopic enrichment
Atomic force microscopy
carbon
Chemical synthesis
color
Color centers
Diamonds
Dynamic nuclear polarization
Electron paramagnetic resonance
electron paramagnetic resonance spectroscopy
Enrichment
High temperature
HPHT diamond growth
Isotopic enrichment
Lattice vacancies
Magnetic resonance imaging
magnetism
nanodiamonds
nanoparticles
Nanostructure
nitrogen
NMR
NMR spectroscopy
Nuclear magnetic resonance
nuclear magnetic resonance spectroscopy
Nuclear spin
NV− center
P1 center
Particle decay
Particle size
Particle spin
Physics
Polarization (spin alignment)
Signal to noise ratio
Spin dynamics
Spin-lattice relaxation
stable isotopes
Surface defects
temperature
NV− center
HPHT diamond growth
P1 center
Dynamic nuclear polarization
13C isotopic enrichment
ISSN:0008-6223, 1873-3891
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Shrnutí:Here we report the synthesis of 13C-enriched diamond powder with sub-micron particle sizes via High Pressure High Temperature (HPHT) growth. Diamond powder with a tailored isotopic enrichment is particularly interesting for implementation of Dynamic Nuclear spin Polarization (DNP) and 13C enrichment plays an important role for increasing the signal to noise ratio in Nuclear Magnetic Resonance (NMR) and Magnetic Resonance Imaging. We applied Electron Paramagnetic Resonance (EPR) and NMR spectroscopy to the sub-micron diamond material as well as Optically Detected Magnetic Resonance (ODMR) and atomic force microscopy to investigate preselected nano-sized particles. The 13C spin concentrations were evaluated with NMR for the initial particle ensemble and with ODMR for the nanodiamond fraction, showing the homogeneous distribution of 13C density in particles with different sizes. The 13C nuclear spin-lattice relaxation decay (T1) shows a multiexponential behavior, where the fast relaxing component is attributed to relaxation from surface defects. Additionally, an optical method for estimating the NV− concentration in nanodiamonds is presented. The obtained powder is promising as a base material for the production of 13C-enriched nanodiamonds for DNP applications. [Display omitted]
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ISSN:0008-6223
1873-3891
DOI:10.1016/j.carbon.2020.04.071