EPR STUDY OF DIAMOND CRYSTALS SYNTHESISED IN Mg–EuF2–C AND Mg–EuF3–C SYSTEMS AT HIGH PT PARAMETERS

EPR STUDY OF DIAMOND CRYSTALS SYNTHESISED IN Mg–EuF2–C AND Mg–EuF3–C SYSTEMS AT HIGH PT PARAMETERS

Diamond crystals synthesized in Mg–EuF 2 –C and Mg–EuF 3 –C systems using high PT (pressure-temperature) parameters are studied by electron paramagnetic resonance (EPR) and photoluminescence spectroscopy. The luminescence spectra of diamond crystals grown in europium containing systems have an optic...

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Veröffentlicht in:Journal of structural chemistry 2021-11, Vol.62 (11), p.1759-1766
Hauptverfasser: Nadolinny, V. A., Komarovskikh, A. Yu, Borzdov, Yu. M., Palyanov, Yu. N.
Format: Artikel
Sprache:eng
Schlagworte:
Atomic
Atomic/Molecular Structure and Spectra
Chemistry
Chemistry and Materials Science
Crystal growth
Diamonds
Electron paramagnetic resonance
Europium
Fluorine
Hyperfine structure
Inorganic Chemistry
Low temperature
Molecular
Optical and Plasma Physics
Parameters
Photoluminescence
Physical Chemistry
Solid State Physics
Spectrum analysis
Symmetry
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Zusammenfassung:Diamond crystals synthesized in Mg–EuF 2 –C and Mg–EuF 3 –C systems using high PT (pressure-temperature) parameters are studied by electron paramagnetic resonance (EPR) and photoluminescence spectroscopy. The luminescence spectra of diamond crystals grown in europium containing systems have an optical center with a zero phonon line at λ = 607 nm. The EPR spectrum of the diamond crystal grown in the Mg–EuF 3 –C system has a new paramagnetic center with hyperfine structure from a fluorine atom. This EPR spectrum is due to a C 3ν (or D 3 d ) point symmetry center and is observed at low temperatures ( T  
ISSN:0022-4766
1573-8779
DOI:10.1134/S0022476621110123