TY - JOUR

T1 - EPR study of germanium-vacancy defects in diamonds

AU - Nadolinny, V. A.

AU - Komarovskikh, A. Yu

AU - Palyanov, Yu N.

AU - Kupriyanov, I. N.

AU - Borzdov, Yu M.

AU - Rakhmanova, M. I.

AU - Yuryeva, O. P.

AU - Veber, S. L.

PY - 2016/9/1

Y1 - 2016/9/1

N2 - 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 D3d 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.

AB - 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 D3d 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.

KW - defect

KW - diamond

KW - electron paramagnetic resonance (EPR)

KW - germanium

KW - luminescence

UR - http://www.scopus.com/inward/record.url?scp=85006160364&partnerID=8YFLogxK

U2 - 10.1134/S0022476616050280

DO - 10.1134/S0022476616050280

M3 - Article

AN - SCOPUS:85006160364

VL - 57

SP - 1041

EP - 1043

JO - Journal of Structural Chemistry

JF - Journal of Structural Chemistry

SN - 0022-4766

IS - 5

ER -