| Инд. авторы: | Mashkovtsev R.I., Pan Y. |
| Заглавие: | Triplet states of oxygen vacancy defects in α-quartz: Center E 9 |
| Библ. ссылка: | Mashkovtsev R.I., Pan Y. Triplet states of oxygen vacancy defects in α-quartz: Center E 9 // EPL. - 2014. - Vol.107. - Iss. 3. - Art.36005. - ISSN 0295-5075. - EISSN 1286-4854. |
| Внешние системы: | DOI: 10.1209/0295-5075/107/36005; SCOPUS: 2-s2.0-84905851658; WoS: 000340780100024; |
| Реферат: | eng: The paramagnetic E9 '' center in triplet state occurring in electron-irradiated, synthetic α-quartz has been investigated by using electron paramagnetic resonance (EPR) spectroscopy. The primary spin Hamiltonian parameter matrices g, D and A (hyperfine interactions for five 29Si nuclei) have now been determined. The principal values and principal directions of D and A matrices allow us to suggest the structural model for this stable triplet defect. The E9 '' center involves the two unpaired electrons located in the orbitals of two silicon atoms next to one oxygen vacancy each. Firm correlations between the spin Hamiltonian matrix principal axes and crystallographic directions have been attained. © 2014 EPLA.
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| Ключевые слова: | CRYSTALLINE SIO2; SILICA; ELECTRON SPIN RESONANCE; IRRADIATED QUARTZ; E' CENTERS; |
| Издано: | 2014 |
| Физ. характеристика: | 36005 |