Sn and Sb segregation and their possible use as surfactant for short-period Si/Ge superlattices

DOI zum Zitieren dieses Dokuments:: 10.5283/epub.10012

Dondl, W. ; Lütjering, G. ; Wegscheider, Werner ; Wilchelm, J. ; Schorer, R. ; Abstreiter, Gerhard

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Veröffentlichungsdatum dieses Volltextes: 26 Okt 2009 14:13

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Zusammenfassung

The incorporation behaviour of antimony and tin in Ge was studied by means of Auger electron spectroscopy. By comparing the measured intensity ratios with a simple incorporation model, we find that Sn is stronger segregating than antimony. The activation energies are 0.34 and 0.27 eV, respectively. Using both materials in order to improve the interface sharpness of short-period Si/Ge ...