EPR study of germanium-vacancy defects in diamonds
At a Glance
Section titled āAt a Glanceā| Metadata | Details |
|---|---|
| Publication Date | 2016-09-01 |
| Journal | Journal of Structural Chemistry |
| Authors | Vladimir A. Nadolinny, Andrey Komarovskikh, Yuri N. Palyanov, Igor N. Kupriyanov, Yuri M. Borzdov |
| Institutions | Nikolaev Institute of Inorganic Chemistry, V.S. Sobolev Institute of Geology and Mineralogy |
| Citations | 9 |
Abstract
Section titled āAbstractāDiamonds 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 (Š 1) 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.