"Физика и техника полупроводников"
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Oxygen in Ge : Sn
Khirunenko L.I.1, Pomozov Yu.V.1, Sosnin M.G.1, Duvanskii A.V.1, Abrosimov N.V.2,3, Riemann H.3
1Institute of Physics, National Academy of Sciences of Ukraine, Kiev, Ukraine
2Institute of Solid State Physics, Russian Academy of Sciences, Chernogolovka, Russia
3Institute of Crystal Growth, Berlin, Germany
Поступила в редакцию: 4 марта 2010 г.
Выставление онлайн: 19 сентября 2010 г.

The effect of doping with tin on the nu3 vibrational mode of oxygen in Ge has been studied. The appearance of three new series of absorption lines besides the nu3 oxygen vibration spectra was found. The spectrum structure in each series of lines found is similar to the nu3 oxygen spectrum structure in Ge. But unlike the nu3 mode, the fine structure due to rotational-vibrational interaction of the nu3 and nu2 modes is not observed and the spectrum structure remains up to temperatures of 130 K. The found three sets of absorption lines are ascribed to the nu3 vibration of interstitial oxygen disturbed by tin atoms located in the nearest environment. The assumption has been made that no rotation of oxygen around a Ge-Ge bond for a Ge-O-Ge quasi-molecule disturbed by a neighbour Sn atom occurs.
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