Mechanisms of nitrogen aggregation in nickel- and cobalt-containing synthetic diamonds

Nadolinny, V. A.; Yelisseyev, A.; Baker, J M; Twitchen, Daniel J.; Newton, M.E.; Feigelson, B. N.; Yuryeva, O. P.

doi:10.1016/s0925-9635(99)00356-8

Cited by 33 publications

(23 citation statements)

References 10 publications

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“…The tate of nitrogen aggregation in nickel-containing diamond is higher than in nickel-free diamond due to a vacancy -interstitial mechanism of nitrogen diffusion [17,18]. But the rate of aggregation of nitrogen around nickel ions into the structure of the double semi-vacancy is higher than the rate of nitrogen aggregation into A-and B-centers, due to an additional mechanism involving enhancement of N* mobility by the Coulomb field of the negatively charged nickel-containing centers [19]. The structure of the nickel-containing centers with nitrogen atoms in different positions around the double semi-vacancy was deduced from data for ligand ~3C and ~4N HFS [16].…”

Section: Nickel-containing Centers In Diamondsmentioning

confidence: 96%

“…22, a further group of crystals (III) was grown in a cobalt solvent-catalyst system containing nitrogen comprising only the ~5N nitrogen isotope. These crystals were also annealed at 1900 ~ for 18 h. The samples investigated in this study were [111] sectors cut from these stones, since nickel and cobalt ions have been shown earlier [18,19] to be incorporated predominantly into [111] sectors. spectra of cobalt-containing crystals annealed at 1800 ~ showed, together with the 04 center, additional lines, although of weaker intensity.…”

Section: Cobalt-containing Centers In Diamondmentioning

confidence: 99%

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EPR study of the peculiarities of incorporating transition metal ions into the diamond structure

Nadolinny

Baker²,

Yuryeva

et al. 2005

Appl. Magn. Reson.

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Abstraet.In this paper previously obtained data is reviewed and new data is discussed about nickelcontaining centers in diamonds. These data ate used to suggest interpretation of new data about cobalt-containing centers and to understand the influence of iron on the defects in diamonds grown in the iron system. A newly discovered nickel-nitrogen center has three nitrogen atoms in the first neighbor sphere around the double semi-vacancy and looks like the N3 (P2) center. In diamonds grown in the cobalt system two new types of cobalt-containing centers were found (NLO2 and NWO1). Both centers have electron spin S = 1/2 and hyperfine structure from one cobalt ion (I = 7/2 with natural abun:ldnce 100%). A case can be made fora double semi-vacancy structure for these defects. Special"~i-owth of diamond in the system enriched in tSN decreased the line width down to 0.6 G, but gave no direct evidence of the existence of nitrogen in the defeet structure. Asymmetrical shapes of the hnes in the electron paramagnetic resonance (EPR) spectra of cobalt-containing centers with opposite signs in low and high magnetic field parts of spectra are due to very sensitive spin-Hamiltonian parameters of these defects to the lattice distortions. Annealing of cobalt-containing crystals at 2600 K produces the disappearance of all cobalt-containing EPR spectra, probably due to the capture of an additional nitrogen atom and the creation of a 3d 6 diamagnetic state. In diamonds grown in the iron system with a high content of nitrogen there is evidence of an influence of ferromagnetic inclusion on the exchange interaction between substitutional nitrogen as an additional channel of indirect exchange interaction. lntroductionThe development of the technology of both synthesis and annealing of diamond crystals allows the study of a means of successively incorporating impurity ions into the diamond structure. Progress in understanding the formation of nitrogen defects created in diamonds began with the seminal papers of Chrenko et al. [1]

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Section: Nickel-containing Centers In Diamondsmentioning

confidence: 96%

Section: Cobalt-containing Centers In Diamondmentioning

confidence: 99%

EPR study of the peculiarities of incorporating transition metal ions into the diamond structure

Nadolinny

Baker²,

Yuryeva

et al. 2005

Appl. Magn. Reson.

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“…On annealing, strain around the substitutional nickel atom is relaxed by a transition of one carbon neighbor to an interstitial position; the nickel atom moves towards the created vacancy and forms a nickel split-vacancy defect. In the paper [23], it was shown that the main reason for nitrogen diffusion towards the nickel-related defects was the Coulomb interaction. The substitutional nitrogen defect donates an electron to the nickel defect.…”

Section: Specific Features Of the Formation Of Nitrogen-nickel Defectsmentioning

confidence: 99%

Incorporation of Large Impurity Atoms into the Diamond Crystal Lattice: EPR of Split-Vacancy Defects in Diamond

2017

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Diamond is a unique mineral widely used in diverse fields due to its remarkable properties. The development of synthesis technology made it possible to create diamond-based semiconductor devices. In addition, doped diamond can be used as single photon emitters in various luminescence applications. Different properties are the result of the presence of impurities or intrinsic defects in diamond. Thus, the investigation of the defect formation process is of particular interest. Although hydrogen, nitrogen, and boron have been known to form different point defects, the possibility for large impurity atoms to incorporate into the diamond crystal structure has been questioned for a long time. In the current paper, the paramagnetic nickel split-vacancy defect in diamond is described, and the further investigation of nickel-, cobalt-, titanium-, phosphorus-, silicon-, and germanium-related defects is discussed.

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“…is formed [81,82,86], as has been confirmed by electron paramagnetic resonance (EPR) measurements [81,87]. In some cases an additional HPHT annealing process is applied to enhance the formation probability of these centers [88,89].…”

Section: Transition Metalsmentioning

confidence: 65%

“…Nevertheless, there were no reports in the literature regarding a controlled fabrication of the NE8 center by ion implantation. This is rather surprising since this defect can be routinely observed in bulk quantities (although not on a single level) after HPHT annealing of nickel containing diamonds [81,82,86,88]. This may indicate that a single NE8 center is a dim center and can not be resolved optically over the background PL.…”

Section: Direct Implantation Into Nitrogen Containing Bulk Diamond Crmentioning

confidence: 97%

Novel Single Photon Emitters Based on Color Centers in Diamond

Aharonovich¹,

Castelletto²,

Prawer³

2011

AIP Conference Proceedings

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Exploitation of emerging quantum technologies requires efficient fabrication of key building blocks. Single photon sources are one of these fundamental constituents that are presently pushing the bounds of existing materials and fabrication techniques. Color centers in diamond are very attractive in this respect since they are the only photostable solid-state single photon emitters operating at room temperature known to date.The Nitrogen-Vacancy (NV) complex is one example of such an optical center and has been subject to intensive research due to the availability of optical readout of its individual electronic spin state. However, the NV center has fundamental limitations: strong phonon coupling of the excited state which results in a broad photoluminescence spectrum (~ 100 nm) of which the zero-phonon line makes up only 4%. Emission of single photons in the zero phonon line is then extremely weak, typically on the order of a few thousands of photons per second. Such count rates are insufficient for the realization of advanced quantum information processing protocols.To move beyond the limitations of the NV there is an emerging need to identify and fabricate novel diamond based single photon emitters with improved photo-physical characteristics. Development of such emitters is the main goal of this thesis.We first concentrate on the recent progress in materials science and fabrication techniques of high quality nanodiamond crystals. We demonstrate the ability to grow high quality, submicron sized diamond crystals with a control over their final size and density using a microwave assisted chemical vapor deposition.We then study two methodologies to engineer diamond based single photon emitters in the grown nanodiamonds. In the first, nickel is implanted into the substrate onto which the nanocrystals are subsequently grown. During the diamond growth, the substrate is slightly etched and the nickel atoms diffuse and incorporate into the growing crystals. In the second we employ direct ion implantation of nickel into already deposited individual diamond nanocrystals. Optical and correlation spectroscopy measurements reveal that these methodologies are effective to fabricate nickel related single photon emitters, with zero phonon lines centered in the near infra-red and a short excited state lifetime (~3 ns).ii Furthermore, the ability of diamond to host various luminescence centers prompted the discovery of a new class of ultra bright single photon emitters. These new emitters found in diamond crystals grown on sapphire substrate and assigned to chromium, which is present in the substrate and incorporated into the crystal during the growth. Nanodiamonds hosting these centers deliver outstanding performance such as narrow photoluminescence in the near infra-red and ultra bright single photon emission with count rate of ~ 3.2×10 6 counts/s -the brightest single photon source known to date.Importantly, some of the emitters exhibit a photon statistics without any photon bunching at saturation, indicating a two-...

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Mechanisms of nitrogen aggregation in nickel- and cobalt-containing synthetic diamonds

Cited by 33 publications

References 10 publications

EPR study of the peculiarities of incorporating transition metal ions into the diamond structure

EPR study of the peculiarities of incorporating transition metal ions into the diamond structure

Incorporation of Large Impurity Atoms into the Diamond Crystal Lattice: EPR of Split-Vacancy Defects in Diamond

Novel Single Photon Emitters Based on Color Centers in Diamond

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