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Ellipsometric properties of GexSi1−x superlattices

✍ Scribed by Qin Linhong; Zheng Youdou; Zhang Rong; Feng Duan


Publisher
Elsevier Science
Year
1992
Tongue
English
Weight
394 KB
Volume
12
Category
Article
ISSN
0749-6036

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Direct observation of the acoustic gaps
✍ V. Lemos; O. Pilla; M. Montagna 📂 Article 📅 1999 🏛 John Wiley and Sons 🌐 English ⚖ 85 KB

Raman spectra of Ge/Ge x Si 1-x superlattices were measured, probing close to the mini-Brillouin zone edge. The data reveal peculiar features in the low-wavenumber region of the spectra. These features are observed as dips superimposed on broad bands, the latter being related to the scattering of pu