An effect of the extended cascade on the Raman spectra of ion-irradiated graphite

Autor:	E Asari
Rok vydání:	2000
Předmět:	Chemistry Flux General Chemistry Crystallographic defect Ion symbols.namesake Vacancy defect symbols General Materials Science Graphite Irradiation Atomic physics Saturation (chemistry) Raman spectroscopy
Zdroj:	Carbon. 38:1857-1861
ISSN:	0008-6223
DOI:	10.1016/s0008-6223(00)00025-7
Popis:	Raman spectra of graphite were measured under Ne+, Kr+ and Xe+ ions irradiation at ion flux of 1.7×1015 ions/m2 at room temperature. The peak intensity ratio of the disorder-induced peak with respect to the Raman active E2g2 mode peak of the first order Raman spectrum is proportional to the square root of the ion irradiation time in the beginning of the irradiation. However, the ratio saturated around 150 s for each ion irradiation. The saturation was explained by creation of vacancy cluster due to the overlap of the irradiation-induced cascades for the direction parallel to the surface.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::6aee95a403392ae7ebf11b711f42e7c3 https://doi.org/10.1016/s0008-6223(00)00025-7 Zobrazit plný text záznamu Full Text from ScienceDirect