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Lookup NU author(s): Dr Jon Goss,
Professor Patrick Briddon
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The identity of boron clusters and boron interstitial clusters in Si, produced by radiation or implantation, has been studied theoretically. Local vibration modes of the single-boron interstitial and the diboron split interstitial (B2I) and its metastable isomer as well as substitutional dimers are found to be in good agreement with observations. The modes of a diboron defect that has trapped three interstitials B2I3 are close to those observed for the boron-related I2 luminescent center. The annealing of these centers around 400 degreesC coincides with the main recovery of the electrical activity of boron, but the formation of defects which are metastable casts doubt on previous modeling strategies.
Author(s): Adey J, Goss JP, Jones R, Briddon PR
Publication type: Article
Publication status: Published
Journal: Physical Review B
ISSN (print): 1098-0121
ISSN (electronic): 1550-235X
Publisher: American Physical Society
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