The relationship between infrared absorption and the A defect concentration in diamond

Boyd, Stuart R.; Kiflawi, I.; Woods, G.S.

doi:10.1080/01418639408240185

Cited by 282 publications

(120 citation statements)

References 7 publications

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“…The directions are for a C 2h symmetry site with (1-10) as its plane of reflection symmetry. g 1 corresponds to (1)(2)(3)(4)(5)(6)(7)(8)(9)(10), and α is the angle between g 2 and <110>. NE2 has the C 1 symmetry, and g 1 is 20…”

Section: Nickel-containing Centers In Diamondsmentioning

confidence: 99%

“…• from (1)(2)(3)(4)(5)(6)(7)(8)(9)(10). β is the angle between A 1 and <111>, A 3 corresponds to (1)(2)(3)(4)(5)(6)(7)(8)(9)(10).…”

Section: Nickel-containing Centers In Diamondsmentioning

confidence: 99%

“…Electron paramagnetic resonance (EPR) parameters for titanium-containing centers with S = 1/2 in diamond. g 1 (A 1 ) corresponds to (1)(2)(3)(4)(5)(6)(7)(8)(9)(10), α is the angle between g 2 (A 2 ) and (110). γ is the angle between A 1 and (1-1-1) or (-11-1) that rotates towards (1-10), A 2 is perpendicular to the (110) plane [32,33].…”

Section: Titanium-containing Centers In Diamondmentioning

confidence: 99%

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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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Section: Nickel-containing Centers In Diamondsmentioning

confidence: 99%

“…• from (1)(2)(3)(4)(5)(6)(7)(8)(9)(10). β is the angle between A 1 and <111>, A 3 corresponds to (1)(2)(3)(4)(5)(6)(7)(8)(9)(10).…”

Section: Nickel-containing Centers In Diamondsmentioning

confidence: 99%

Section: Titanium-containing Centers In Diamondmentioning

confidence: 99%

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

2017

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“…A huge amount of work subsequently went into establishing the absorption envelope for each of the possible N-related defects, the quantitative relationships between the area of the peaks in the infrared spectra and the concentrations of the different N defects (e.g. Boyd et al, 1994Boyd et al, , 1995 and determining the rate of conversion of single nitrogen centres (C-centres) to pairs of nitrogens (A centres) and subsequently to four nitrogens around a vacancy (B centres) (e.g. Chrenko et al, 1977;Allen and Evans, 1981;Evans and Qi, 1982).…”

Section: Previous Work On Nitrogen Defects and Aggregation Ratesmentioning

confidence: 99%

FTIR thermochronometry of natural diamonds: A closer look

Kohn

Speich

Smith

et al. 2016

Lithos

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General rightsThis document is made available in accordance with publisher policies. Please cite only the published version using the reference above. Full terms of use are available: http://www.bristol.ac.uk/pure/about/ebr-terms FTIR thermochronometry of natural diamonds: a closer lookSimon C. Kohn, Laura Speich, Christopher B. Smith and Galina P. Bulanova School of Earth Sciences, University of Bristol, Queens Rd., Bristol, BS8 1RJ, U.K. AbstractFTIR is a commonly-used technique for investigating diamonds, but much of the most useful information is lost if spatially resolved measurements are not used. In this study we show examples of FTIR core-to-rim line scans, maps with high spatial resolution and maps with high spectral resolution that are fitted to extract the spatial variation of different nitrogen and hydrogen defects. Model residence temperatures are calculated from the concentration of A and B centres using known times of annealing in the mantle, and a new, two-stage aggregation model is presented that better constrains the thermal history of the diamond and that of the mantle lithosphere in which the diamond resided. The effect of heterogeneity within the analyzed FTIR volume is quantitatively assessed and errors in model temperatures that can be introduced by studying whole diamonds instead of thin plates are discussed. The spatial distribution of hydrogen associated with the 3107 cm -1 vibration does not follow the same pattern as nitrogen, and an enrichment of hydrogen at the boundary between pre-existing diamond and diamond overgrowths is observed. There are several possible explanations for this observation including a change in chemical composition of diamond forming fluid during growth or kinetically controlled uptake of hydrogen.

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“…In the past decade, considerable progress has been made in the investigation of optically active structural defects (centers) in diamond (e.g., Evans 1992, Boyd et al 1994, 1995, Mendelssohn & Milledge 1995, Taylor et al 1996. Great success has been achieved in interpreting the nature of the structural defects in diamond and in developing methods of estimating the concentrations of impurity centers causing these defects.…”

Section: Introductionmentioning

confidence: 99%

Characteristics of Nitrogen and Other Impurities in Diamond, as Revealed by Infrared Absorption Data

Kaminsky¹,

Khachatryan²

2001

The Canadian Mineralogist

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Diamond crystals from Siberian, Arkhangelsk, South African, Canadian and South American deposits were analyzed for structurally bound nitrogen, hydrogen and "platelet" defects using infrared (IR) absorption spectroscopy. Wide variations in total nitrogen and hydrogen contents and in the state of nitrogen aggregation were established in diamond crystals from different areas and deposits. On this basis, three groups were distinguished: (1) low-nitrogen, highly-aggregated-nitrogen diamond, (2) intermediate diamond crystals, and (3) high-nitrogen, poorly-aggregated-nitrogen diamond (occasionally with high concentrations of hydrogen and "platelets"). They represent, in general terms, three major stages of diamond formation: (1) the initial stage at high P-T conditions, which occasionally occurs in super-deep areas (e.g., lower mantle and transition zone), (2) the main stage, and (3) the final stage, which represents the latest episodes of magmatic evolution and is characterized by high oversaturation of the crystallization medium and high internal temperature-gradients. These data may be used for "fingerprinting" of diamond, in prospecting for new deposits in diamondiferous areas, and in the evaluation of diamond crystals from newly discovered deposits.

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The relationship between infrared absorption and the A defect concentration in diamond

Cited by 282 publications

References 7 publications

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

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

FTIR thermochronometry of natural diamonds: A closer look

Characteristics of Nitrogen and Other Impurities in Diamond, as Revealed by Infrared Absorption Data

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