Paramagnetic defects in neutron-irradiated phenakite crystals / Guseva V. B.,Zatsepin A. F.,Vazhenin V. A.,Artyomov M. Yu.,Kukharenko A. I. // PHYSICS OF THE SOLID STATE. - 2010. - V. 52, l. 4. - P. 691-699.

ISSN/EISSN:

1063-7834 / нет данных

Type:

Article

Abstract:

Radiation-disordered crystals of phenakite Be(2)SiO(4) (at fast neutron fluences of (0.75, 1.0, 1.2, 6.6, 8.5) x 10(18) cm(-2)) have been investigated using EPR spectroscopy. It has been established that the main radiation damages predominantly occur in the silicon-oxygen sublattice of the crystal. Vacancy centers (E' centers, g = 2.0015), defects of the displaced oxygen type, and O(-) hole-type centers have been revealed. The paramagnetic absorption signal with the parameters g (x) = 2.0218, g (y) = 2.0124, and g (z) = 2.0027 has been identified with the {[}SiO(4)](3-) complex (a variety of O(-) centers). The intense EPR signals with the parameters g (x) = 2.0526, g (y) = 2.0020, g (z) = 2.0066 and g (x) = 2.0290, g (y) = 2.0030, g (z) = 2.0099 have been assigned to two types of O (2) (-) molecular ions with different local environments. The theoretical models of radiation-induced centers have been discussed by comparing the EPR and optical spectroscopic data.

Author keywords:

HOLE-CENTERS; QUARTZ; OXYGEN; BAND; EPR; RESONANCE; PHENACITE; GLASSES; BE2SIO4; DAMAGE

DOI:

10.1134/S1063783410040049

Web of Science ID:

ISI:000277098200004

Соавторы в МНС:

Другие поля

Поле	Значение
Month	APR
Publisher	MAIK NAUKA/INTERPERIODICA/SPRINGER
Address	233 SPRING ST, NEW YORK, NY 10013-1578 USA
Language	English
Keywords-Plus	HOLE-CENTERS; QUARTZ; OXYGEN; BAND; EPR; RESONANCE; PHENACITE; GLASSES; BE2SIO4; DAMAGE
Research-Areas	Physics
Web-of-Science-Categories	Physics, Condensed Matter
Author-Email	valentina.guseva@usu.ru
ResearcherID-Numbers	Zatsepin, Anatoly/L-7335-2016 Kukharenko, Andrey/M-8256-2016 Artyomov, Mikhail/E-6909-2017 Zatsepin, Dmitry/F-5520-2012
ORCID-Numbers	Zatsepin, Anatoly/0000-0001-9539-2403 Kukharenko, Andrey/0000-0003-3774-6909
Funding-Acknowledgement	Ural Research and Education Center for Advanced Materials {[}CRDF REC-005, Y4-P-05-01]; Russian Foundation for Basic Research {[}08-02-01072]
Funding-Text	This study was performed within the framework of the plan of the Ural Research and Education Center for Advanced Materials (award no. CRDF REC-005, Y4-P-05-01) and supported by the Russian Foundation for Basic Research (project no. 08-02-01072).
Number-of-Cited-References	34
Usage-Count-Last-180-days	1
Usage-Count-Since-2013	7
Journal-ISO	Phys. Solid State
Doc-Delivery-Number	588TY