Identification of the neutral carbon 〈100〉-split interstitial in diamond

Hunt, D.C.; Twitchen, Daniel J.; Newton, Mark E.; Baker, J M; Anthony, T. R.; Banholzer, W. F.; Vagarali, Suresh S.

doi:10.1103/physrevb.61.3863

Cited by 98 publications

(81 citation statements)

References 30 publications

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“…This is consistent with the behavior of other semiconductors, such as diamond, where the interstitial is known to be mobile at low temperatures. 30 The products of the radioactive decays for 72 Zn→ 72 Ga → 72 Ge and 73 Ga→ 73 Ge include high-energy electrons, with mean energies in the region of 448.5, 502.6, and 85.6 keV for 73 Ga, 72 Ga, and 72 Zn, respectively. These could potentially cause the generation of defects in the crystals that might influence the PL intensities.…”

Section: Discussionmentioning

confidence: 99%

Identification of donor-related impurities in ZnO using photoluminescence and radiotracer techniques

et al. 2006

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Section: Discussionmentioning

confidence: 99%

Identification of donor-related impurities in ZnO using photoluminescence and radiotracer techniques

et al. 2006

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“…Infrared measurements of the as-grown sample showed it to contain 9͑1͒ ppm ͑parts per million carbon atoms͒ N S 0 . The sample was irradiated with 1.9 MeV electrons to a dose of 3 ϫ 10 18 e / cm 2 , yielding a vacancy concentration 21 of ϳ25 ppm. The sample was subsequently annealed at 1100 K in a nonoxidizing atmosphere for 4 h.…”

Section: Methodsmentioning

confidence: 99%

“…The reaction mixture was then subjected to HPHT conditions in the diamond stable region producing material with ϳ150 ppm N S 0 , as measured using EPR. The sample was HPHT annealed leading to Ͼ80% aggregation of the nitrogen to A centers ͑nitrogen pairs͒ and then irradiated with 1.5 MeV electrons to a dose of 4 ϫ 10 17 e / cm 2 , leading to a vacancy concentration 21 of ϳ3 ppm. ͑This sample contains different growth sectors with differing N S concentrations so that in some sectors the vacancy concentration was of the same order of magnitude as the N S concentration.͒ After the irradiation the sample was annealed in a nonoxidizing atmosphere at 1100 K for 4 h.…”

Section: Methodsmentioning

confidence: 99%

Hyperfine interaction in the ground state of the negatively charged nitrogen vacancy center in diamond

et al. 2009

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C hyperfine interactions in the ground state of the negatively charged nitrogen vacancy ͑NV − ͒ center have been investigated using electron-paramagnetic-resonance spectroscopy. The previously published parameters for the 14 N hyperfine interaction do not produce a satisfactory fit to the experimental NV − electron-paramagnetic-resonance data. The small anisotropic component of the NV − hyperfine interaction can be explained from dipolar interaction between the nitrogen nucleus and the unpaired-electron probability density localized on the three carbon atoms neighboring the vacancy. Optical spin polarization of the NV − ground state was used to enhance the electron-paramagnetic-resonance sensitivity enabling detailed study of the hyperfine interaction with 13 C neighbors. The data confirmed the identification of three equivalent carbon nearest neighbors but indicated the next largest 13 C interaction is with six, rather than as previously assumed three, equivalent neighboring carbon atoms.

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“…ESR measurements of the interstitial carbon color center, R2, suggest that some recombination occurs during irradiation unless the diamond is cooled well below room temperature [169,159] (not the case here), and that during annealing the remaining R2 centers become mobile at a threshold temperature in the 400 − 700…”

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confidence: 88%

Optical magnetometry with nitrogen-vacancy centers in diamond

Acosta¹

2013

Optical Magnetometry

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Precision measurement of magnetic elds is at the heart of many important analytic techniques in materials, geology, biology, medicine, security, space, and the physical sciences. These applications require operation under a wide range of specications regarding sensitivity, spatial resolution, bandwidth, scalability, and temperature. In this work we have developed the enabling technology for magnetometers based on nitrogen-vacancy (NV) defects in diamond which promise to cover a wider portion of this parameter space than existing sensors. We have studied how to prepare diamond material optimized for magnetometry, and we observed the basic optical and spin properties of the NV centers. Using a novel scheme inspired by new information about NV centers gathered from these studies, we constructed a sensor which improved on the state-of-the-art in a number of areas. Finally, we outline a plan for improving these sensors to study micro-and nano-scale magnetic phenomena currently inaccessible using existing technology.

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Identification of the neutral carbon 〈100〉-split interstitial in diamond

Cited by 98 publications

References 30 publications

Identification of donor-related impurities in ZnO using photoluminescence and radiotracer techniques

Identification of donor-related impurities in ZnO using photoluminescence and radiotracer techniques

Hyperfine interaction in the ground state of the negatively charged nitrogen vacancy center in diamond

Optical magnetometry with nitrogen-vacancy centers in diamond

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