Temperature-induced obliteration of sub-oxide interfaces in amorphous GeO |
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| Authors: | A Schacht C Sternemann A Hohl H Sternemann ChJ Sahle M Paulus M Tolan |
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| Institution: | 1. Fakultät Physik/DELTA, Technische Universität Dortmund, Maria-Goeppert-Mayer-Str. 2, D-44221 Dortmund, Germany;2. Brucker Advanced Supercon GmbH, Friedrich-Ebert-Str. 1, D-51429 Bergisch Gladbach, Germany;3. Institute for Materials Science, Darmstadt University of Technology, D-64287 Darmstadt, Germany |
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| Abstract: | The temperature-induced phase separation of native amorphous germanium monoxide, a-GeO, into Ge and GeO2 was studied by measurements of the Ge K-edge employing partial fluorescence yield detection. In the native a-GeO samples a significant amount of sub-oxides was found. This sub-oxide content decreases with increasing annealing temperature. At elevated temperatures the formation of nanocrystals was observed. The results indicate a structure of a-GeO which consists of nanoscaled Ge and GeO2 clusters separated by sub-oxide interfaces. |
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