HUMLÍČEK, Josef, Richard ŠTOUDEK and Adam DUBROKA. Infrared vibrations of interstitial oxygen in silicon-rich SiGe alloys. Physica B. Amsterdam: Elsevier Science, 2006, 376-377, No 6, p. 212-215. ISSN 0921-4526. |
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@article{633904, author = {Humlíček, Josef and Štoudek, Richard and Dubroka, Adam}, article_location = {Amsterdam}, article_number = {6}, keywords = {Germaniumsilicon alloys; Oxygen; Infrared absorption}, language = {eng}, issn = {0921-4526}, journal = {Physica B}, title = {Infrared vibrations of interstitial oxygen in silicon-rich SiGe alloys}, volume = {376-377}, year = {2006} }
TY - JOUR ID - 633904 AU - Humlíček, Josef - Štoudek, Richard - Dubroka, Adam PY - 2006 TI - Infrared vibrations of interstitial oxygen in silicon-rich SiGe alloys JF - Physica B VL - 376-377 IS - 6 SP - 212-215 EP - 212-215 PB - Elsevier Science SN - 09214526 KW - Germaniumsilicon alloys KW - Oxygen KW - Infrared absorption N2 - We report on the infrared spectra of the antisymmetric stretching vibration of Oi in Si-rich Si1xGex alloys. The shift of its frequency is obtained as a function of the germanium content x below 0:5. We present a decomposition of the low-temperature spectra using GaussLorentz profiles. A low-lying broad band is found for x ź 0:08, and assigned tentatively to the vibrations of Si2O units with the nearest sites occupied by several Ge atoms. We compare our experimental findings with results of a recent ab initio study of the phonon modes. ER -
HUMLÍČEK, Josef, Richard ŠTOUDEK and Adam DUBROKA. Infrared vibrations of interstitial oxygen in silicon-rich SiGe alloys. \textit{Physica B}. Amsterdam: Elsevier Science, 2006, 376-377, No~6, p.~212-215. ISSN~0921-4526.
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