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EPR study of germanium-vacancy defects in diamonds

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Abstract

Diamonds synthesized in the Mg0.9–Ge0.1–C system at high pressure-high temperature (HPHT) conditions are investigated by the EPR and luminescence methods. A new GeV paramagnetic center with the spin S = 1 and D 3d symmetry is detected in the EPR spectra of the Ge-doped samples, along with the impurity nitrogen (Р1) and silicon-vacancy defect KUL1 (SiV0) centers. The investigation demonstrates that this new center has a double semi-vacancy structure with the germanium atom in the center. The studied GeV center is in a neutral charge state and is assigned to the 602 nm system in the photoluminescence spectra.

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Authors and Affiliations

  1. Nikolaev Institute of Inorganic Chemistry, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia

    V. A. Nadolinny, A. Yu. Komarovskikh, M. I. Rakhmanova & O. P. Yuryeva

  2. Sobolev Institute of Geology and Mineralogy, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia

    A. Yu. Komarovskikh, Yu. N. Palyanov, I. N. Kupriyanov, Yu. M. Borzdov & M. I. Rakhmanova

  3. Novosibirsk National Research State University, Novosibirsk, Russia

    Yu. N. Palyanov, I. N. Kupriyanov, Yu. M. Borzdov & S. L. Veber

  4. International Tomography Center, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia

    S. L. Veber

Authors
  1. V. A. Nadolinny
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  2. A. Yu. Komarovskikh
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  3. Yu. N. Palyanov
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  4. I. N. Kupriyanov
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  5. Yu. M. Borzdov
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  6. M. I. Rakhmanova
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  7. O. P. Yuryeva
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  8. S. L. Veber
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Corresponding author

Correspondence to V. A. Nadolinny.

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Translated from Zhurnal Strukturnoi Khimii, Vol. 57, No. 5, pp. 1092-1094, June-July, 2016.

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Nadolinny, V.A., Komarovskikh, A.Y., Palyanov, Y.N. et al. EPR study of germanium-vacancy defects in diamonds. J Struct Chem 57, 1041–1043 (2016). https://doi.org/10.1134/S0022476616050280

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  • DOI: https://doi.org/10.1134/S0022476616050280

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