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Ab initio local vibrational modes of light impurities in silicon

✍ Scribed by Pruneda, J. M.; Estreicher, S. K.; Junquera, J.; Ferrer, J.; Ordejón, P.


Book ID
124162475
Publisher
The American Physical Society
Year
2002
Tongue
English
Weight
120 KB
Volume
65
Category
Article
ISSN
1098-0121

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Vibrational lifetimes of light impuritie
✍ S.K. Estreicher; D. West 📂 Article 📅 2006 🏛 Elsevier Science 🌐 English ⚖ 219 KB

Light impurities in covalent materials, such as H or O in Si, are characterized by high-frequency local vibrational modes (LVMs) far above the phonon frequencies of the host crystal. Upon excitation, such LVMs are expected to have long lifetimes since their decay involve multi-phonon processes. Yet,