Colour centres in :Fe and :Cu crystals irradiated by 12C ions

Autor:	Piotr Potera, Tadeusz Lukasiewicz, D. Sugak, Sergii Ubizskii
Rok vydání:	2007
Předmět:	Range (particle radiation) Radiation Chemistry Doping Lithium niobate Analytical chemistry Mineralogy chemistry.chemical_element Fluence Ion chemistry.chemical_compound Lithium Irradiation Absorption (chemistry) Instrumentation
Zdroj:	Radiation Measurements. 42:232-235
ISSN:	1350-4487
DOI:	10.1016/j.radmeas.2006.12.004
Popis:	The present work is devoted to the investigation of optical absorption of pure and doped LiNbO 3 (LN) single crystals in the spectral range 5000– 32000 cm - 1 induced under influence of the 12C ions irradiation with energy 4.5 MeV/u (MeV per nucleon) and a fluence 2 × 10 9 cm - 2 at room temperature. It was found that no remarkable absorption changes occur in pure and Mg-doped LN crystals, but in Fe- and Cu-doped ones. The induced additional absorption in LN:Fe crystals is attributed with Fe ions reducing Fe 3 + → Fe 2 + occurring simultaneously with hole centres formation O - , while only Cu 2 + → Cu + reduction was observed in LN:Cu crystals.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::d746d0a7e727b90bd78ac9fdf71b1857 https://doi.org/10.1016/j.radmeas.2006.12.004 Zobrazit plný text záznamu Full Text from ScienceDirect