HPHT growth and characterization of diamond from a copper-carbon system

Kupriyanov, Igor N.; Khokhryakov, Alexander F.; Borzdov, Yuri M.; Palyanov, Yuri N.

doi:10.1016/j.diamond.2016.09.009

Cited by 18 publications

(5 citation statements)

References 42 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…To date, diamond synthesis has been achieved in the melts of sulfur, 23,24 phosphorus, 25,26 selenium and tellurium, 27 antimony, 28 tin, 29 germanium 30 and copper. 31 The use of unusual solvent-catalysts makes it possible to produce and investigate diamonds with unique properties, such as n-type semiconducting diamonds doped with phosphorus, 32 superconducting boron doped diamond 33 and diamonds containing new optical centers due to germanium 30,34 and copper 31 impurities.…”

Section: Introductionmentioning

confidence: 99%

High-pressure crystallization and properties of diamond from magnesium-based catalysts

et al. 2017

Self Cite

View full text Add to dashboard Cite

show abstract

Section: Introductionmentioning

confidence: 99%

High-pressure crystallization and properties of diamond from magnesium-based catalysts

et al. 2017

Self Cite

View full text Add to dashboard Cite

show abstract

“…The {311} faces are the most common and have significant development in the crystal habit. This simple form is also common for diamond crystals grown from melts of transition metals and copper 23 – 25 . To a lesser extent, {211}, {411}, {511}, {733} and {110} faces are observed for diamonds synthesized in the REM-C systems.…”

Section: Resultsmentioning

confidence: 97%

Rare-earth metal catalysts for high-pressure synthesis of rare diamonds

Palyanov

Borzdov

Kupriyanov

et al. 2021

Sci Rep

Self Cite

View full text Add to dashboard Cite

The combination of the unique properties of diamond and the prospects for its high-technology applications urges the search for new solvents–catalysts for the synthesis of diamonds with rare and unusual properties. Here we report the synthesis of diamond from melts of 15 rare-earth metals (REM) at 7.8 GPa and 1800–2100 °C. The boundary conditions for diamond crystallization and the optimal parameters for single crystal diamond synthesis are determined. Depending on the REM catalyst, diamond crystallizes in the form of cube–octahedrons, octahedrons and specific crystals bound by tetragon–trioctahedron and trigon–trioctahedron faces. The synthesized diamonds are nitrogen-free and belong to the rare type II, indicating that the rare-earth metals act as both solvent–catalysts and nitrogen getters. It is found that the REM catalysts enable synthesis of diamond doped with group IV elements with formation of impurity–vacancy color centers, promising for the emerging quantum technologies. Our study demonstrates a new field of application of rare-earth metals.

show abstract

“…Among transition metals, the magnetic moment is reported to be the highest one. Experimentally [90], when Cu was used as a forming agent during diamond synthesis, the photoluminescence spectrum showed a new zero phonon line at 709.3 nm. The team tentatively assigned this to Cu impurities, but confirmation is lacking.…”

Section: Cumentioning

confidence: 99%

Impurity atom configurations in diamond and their visibility via scanning transmission electron microscopy imaging

Propst,

Kotakoski,

Åhlgren

2023

Electron. Struct.

View full text Add to dashboard Cite

Dispersed impurities in diamond present a flourishing platform for research in quantum informatics, spintronics and single phonon emitters. Based on the vast pool of experimental and theoretical work describing impurity atoms in diamond, we review the configurations by the chemical element discussing the relevant atomic configurations and most important properties. Dopant structures expand from single to co-doping configurations, also combined with carbon vacancies. Despite of their importance, not much is known about the exact atomic configurations associated with the dopant structures beyond computational models, partially due to difficulties in their microscopic observation. To assess the visibility of these structures, we carry out image simulations to show that the heavier dopants may be easily discernible in scanning transmission electron microscopy annular dark field images, with a window of visibility of up to over ± 10 nm in defocus. We further present the first atomic resolution images of an impurity atom configuration (substitutional Er atom) in the diamond lattice, confirmed by a comparison to the simulated images. Overall, our results demonstrate that there is a vast research field waiting for the microscopy community in resolving the exact atomic structure of various impurity atom configurations in diamond.

show abstract

HPHT growth and characterization of diamond from a copper-carbon system

Cited by 18 publications

References 42 publications

High-pressure crystallization and properties of diamond from magnesium-based catalysts

High-pressure crystallization and properties of diamond from magnesium-based catalysts

Rare-earth metal catalysts for high-pressure synthesis of rare diamonds

Impurity atom configurations in diamond and their visibility via scanning transmission electron microscopy imaging

Contact Info

Product

Resources

About