Инд. авторы: | Mashkovtsev R.I., Pan Y. |
Заглавие: | New E′ centers in neutron-irradiated α-quartz |
Библ. ссылка: | Mashkovtsev R.I., Pan Y. New E′ centers in neutron-irradiated α-quartz // EPL. - 2016. - Vol.113. - Iss. 6. - Art.64004. - ISSN 0295-5075. - EISSN 1286-4854. |
Внешние системы: | DOI: 10.1209/0295-5075/113/64004; SCOPUS: 2-s2.0-84963864284; WoS: 000374764700015; |
Реферат: | eng: Several E′-type defects have been revealed in neutron-irradiated natural and synthetic α-quartz by using electron paramagnetic resonance (EPR) spectroscopy. For the known center the primary spin Hamiltonian parameter matrices g and A(29Si) (hyperfine interaction with 29Si) have been refined and provide compelling evidence for spin trapping on the long-bond Si atom. The EPR spectra of the new center demonstrate that the super-hyperfine structure arises from the interaction with 27Al, the first-ever example of Al-associated E′ centers in crystalline quartz. The matrices g and A(29Si) of and another new center support the forward-oriented configuration proposed for the center in amorphous silica. © CopyrightEPLA, 2016.
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Издано: | 2016 |
Физ. характеристика: | 64004 |