Titanium Ions in the Diamond Structure: Model and Experimental Evidence

Nadolinny, V. A.; Yuryeva, O. P.; Чепуров, А. А.; Shatsky, V. S.

doi:10.1007/s00723-009-0013-7

Cited by 17 publications

(21 citation statements)

References 8 publications

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“…After that, diamond crystals were synthesized in a Fe-Ni-C system, with additional titanium as a nitrogen getter. The N3/440.3 nm center was observed in the photoluminescence spectra of the samples [36]. The analysis of the phonon structure of the N3/440.3 nm center showed that the energy of the quasi-local vibration (53 meV) corresponded to the titanium atom mass [33].…”

Section: Titanium-containing Centers In Diamondmentioning

confidence: 96%

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: Titanium-containing Centers In Diamondmentioning

confidence: 96%

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

2017

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“…Although the nitrogen‐containing paramagnetic centers OK1 and N3 were first detected more than 30 years ago, the identity of these centers was not been unambiguously determined . Regarding the nature of defects in diamond, more than 500 have been characterized with only a handful identified.…”

Section: Introductionmentioning

confidence: 99%

“…Almost all of the studied crystals contained centers OK1 and N3. In this work, it was shown that the EPR center OK1 corresponded to S1 system (503.4 and 510.7 nm) in luminescence [5], and the EPR center N3 had an optical analog with a ZPL at 440.3 nm in luminescence. Investigation of the chemical composition of the xenolith showed a very high content of titanium compounds exceeding by three orders of magnitude, the content in other xenoliths.…”

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confidence: 98%

The influence of HTHP treatment on the OK1 and N3 centers in natural diamond crystals

Nadolinny

Palyanov

Yuryeva

et al. 2015

Physica Status Solidi (a)

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The structures of nitrogen-containing paramagnetic centers OK1 and N3 have not been unambiguously determined yet. In this paper, we will present data on the influence of high temperature annealing on the paramagnetic centers OK1 and N3 in diamond. A series of natural colored diamond crystals of cubic habit containing paramagnetic centers OK1 and N3 was studied by electron paramagnetic resonance (EPR), luminescence, and IR spectroscopies. It was found that annealing at temperatures above 2470 K led to the transformation of N3 paramagnetic centers into OK1 paramagnetic centers. Previous work has showed that a temperature in excess of 2400 K are often associated with a local environment change of tetrahedral to octahedral for impurities with large atomic radii. We report a correlation with the intensity of the optical 635.7 nm system and the concentration of the N3 EPR center. However, on stepped annealing 635.7 nm was removed before the N3 EPR center. From the analysis presented, we propose that the N3 EPR center and the 635.7 nm optical system are the manifestation of various defects formed by one impurity atom. 1 Introduction Although the nitrogen-containing paramagnetic centers OK1 and N3 [1, 2] were first detected more than 30 years ago, the identity of these centers was not been unambiguously determined [2][3][4][5]. Regarding the nature of defects in diamond, more than 500 have been characterized with only a handful identified. Of those positively identified, EPR was often a key tool used in unlocking their structure and identity. This includes nitrogen centers P1 [6], P2 [7,8], W7 formed by the interaction of Acenters with the dislocation [9,10], and N 2 V which is the result of the interaction of A-centers with vacancies [10]. In addition, the structures of nickel-nitrogen centers NE1-NE9 [11][12][13][14], boron-nickel centers [15], nitrogen-cobalt centers [16,17], nitrogen-phosphorus centers NP1-NP7 [18][19][20], oxygen-containing [21], and hydrogen-containing centers [22,23] were determined. OK1 and N3 EPR centers remain unidentified but are often observed together, as shown by recent studies [23]. They are a characteristic

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“…The N aggregation characteristics of diamond can be used to identify its thermal history (residence time and temperature) in the mantle after its growth (Taylor et al 1990(Taylor et al , 1996Taylor and Milledge 1995). Along with light elements (nitrogen, boron, hydrogen, and oxygen), nickel, cobalt, phosphorus, and titanium ions have been found to be incorporated into the diamond lattice (Collins 2000;Twitchen et al 2000;Nadolinny et al 2009a). The presence of impurity elements in the diamond structure determined by examining the optical and/or magnetic properties allows one to estimate some special characteristic features of diamonds of different paragenetic associations and to simulate in the laboratory the conditions of diamond crystal growth (Nadolinny et al 1995;Palyanov et al 2013).…”

Section: Introductionmentioning

confidence: 97%

The characteristic photoluminescence and EPR features of superdeep diamonds (São-Luis, Brazil)

et al. 2015

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Titanium Ions in the Diamond Structure: Model and Experimental Evidence

Cited by 17 publications

References 8 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

The influence of HTHP treatment on the OK1 and N3 centers in natural diamond crystals

The characteristic photoluminescence and EPR features of superdeep diamonds (São-Luis, Brazil)

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