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Kinetics of color center formation in silica irradiated with swift heavy ions: Thresholding and formation efficiency
Citation
Manzano-Santamaría, J., Olivares, J., Rivera de Mena, Antonio 
ORCID: https://orcid.org/0000-0002-8484-5099, Peña Rodríguez, Ovidio Y. and Agullo Lopez, Fernando
(2012).
Kinetics of color center formation in silica irradiated with swift heavy ions: Thresholding and formation efficiency.
"Applied Physics Letters", v. 101
(n. 15);
p. 154103.
ISSN 1077-3118.
https://doi.org/10.1063/1.4757886.
Description
| Title: | Kinetics of color center formation in silica irradiated with swift heavy ions: Thresholding and formation efficiency |
|---|---|
| Author/s: |
|
| Item Type: | Article |
| Título de Revista/Publicación: | Applied Physics Letters |
| Date: | 8 October 2012 |
| ISSN: | 1077-3118 |
| Volume: | 101 |
| Subjects: | |
| Faculty: | Instituto de Fusión Nuclear (UPM) |
| Department: | Otro |
| Creative Commons Licenses: | Recognition - No derivative works - Non commercial |
Abstract
We have determined the cross-section σ for color center generation under single Br ion impacts on amorphous SiO2. The evolution of the cross-sections, σ(E) and σ(Se), show an initial flat stage that we associate to atomic collision mechanisms. Above a certain threshold value (Se > 2 keV/nm), roughly coinciding with that reported for the onset of macroscopic disorder (compaction), σ shows a marked increase due to electronic processes. In this regime, a energetic cost of around 7.5 keV is necessary to create a non bridging oxygen hole center-E′ (NBOHC/E′) pair, whatever the input energy. The data appear consistent with a non-radiative decay of self-trapped excitons.
More information
| Item ID: | 15617 |
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| DC Identifier: | https://oa.upm.es/15617/ |
| OAI Identifier: | oai:oa.upm.es:15617 |
| DOI: | 10.1063/1.4757886 |
| Official URL: | http://scitation.aip.org/content/aip/journal/apl/1... |
| Deposited by: | Memoria Investigacion |
| Deposited on: | 21 Oct 2013 14:16 |
| Last Modified: | 30 May 2017 16:04 |
