Quasi-dynamic structural disorder induced by fast neutrons in Be3Al2Si6O18 crystals / Weinstein IA,Zatsepin AF,Kortov VS // PHYSICS OF THE SOLID STATE. - 2001. - V. 43, l. 2. - P. 246-250.

ISSN/EISSN:

1063-7834 / нет данных

Type:

Article

Abstract:

The UV absorption spectra of beryl crystals exposed to fast neutrons with a fluence of 10(14)-10(19) cm(-2) are investigated. It is found that as the fluence of particles increases, a characteristic fan-shaped broadening of the long-wavelength edge is observed for the impurity adsorption band with a charge transfer. The experimental results are interpreted on the basis of the generalized Urbach rule in the approximation of an induced quasi-dynamic disorder. The effective cross section of radiation-induced lattice disordering in the crystals under investigation is estimated at a value (sigma = 2.58 x 10(-18) cm(2)) close to the neutron amorphization cross sections for other crystalline silicates. (C) 2001 MAIK ``Nauka/ Interperiodica{''}.

Author keywords:

AMORPHOUS-SILICON; ABSORPTION EDGE; SOLIDS

DOI:

10.1134/1.1349468

Web of Science ID:

ISI:000166815800009

Соавторы в МНС:

Другие поля

Поле	Значение
Publisher	AMER INST PHYSICS
Address	2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
Language	English
Keywords-Plus	AMORPHOUS-SILICON; ABSORPTION EDGE; SOLIDS
Research-Areas	Physics
Web-of-Science-Categories	Physics, Condensed Matter
ResearcherID-Numbers	Zatsepin, Anatoly/L-7335-2016 Weinstein, Ilya/K-8178-2012
ORCID-Numbers	Zatsepin, Anatoly/0000-0001-9539-2403 Weinstein, Ilya/0000-0002-5573-7128
Number-of-Cited-References	24
Usage-Count-Since-2013	2
Journal-ISO	Phys. Solid State
Doc-Delivery-Number	399MC