EPR study of impurity defects in diamonds grown in carbonate medium
作者： Andrey Komarovskikh , Vladimir Nadolinny , Yuri Palyanov , Igor Kupriyanov , None
关键词: Crystallography 、 Diamond cubic 、 Infrared spectroscopy 、 Nuclear magnetic resonance 、 Electron paramagnetic resonance 、 Diamond type 、 Paramagnetism 、 Hyperfine structure 、 Impurity 、 Diamond 、 Chemistry
摘要: Three previously unobserved paramagnetic centers: OX1, OX2, and OX3, have been revealed by the EPR studies of synthetic diamonds grown in Na2CO3–CO2–C system. All these centers electron spin S = 1/2 not got hyperfine structure. High g-factor anisotropy studied OX3 absence transition metal ions diamond structure may be indicative that there is an oxygen atom defects. IR spectra contain intensive line at 1332 cm−1, which confirms high content positive charge state substitutional nitrogen (N+) diamonds. It was supposed all three negative states. In paper structures are discussed according to obtained experimental data.
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