Analysis of thin germanium-rich SiGe layers on Si(1 1 1) substrates grown by carbon-mediated epitaxy

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OriginalspracheEnglisch
Aufsatznummer125569
FachzeitschriftJournal of Crystal Growth
Jahrgang535
Frühes Online-Datum20 Feb. 2020
PublikationsstatusVeröffentlicht - 1 Apr. 2020

Abstract

In this work, we adapted the growth process of carbon-mediated epitaxy from Ge and SiGe layers on Si(0 0 1) for layers on Si(1 1 1). Using atomic force microscopy, it was possible to measure a surface roughness of less than 1 nm for all samples grown with a C submonolayer. The degree of relaxation and Ge content of the layers was obtained by X-ray diffraction in skew geometry due to the low thickness of the layers. The layers are between 20 nm and 40 nm thick and fully relaxed with a Ge content between 0.5<x<1. By monitoring the growth process with RHEED, it was shown that the layers exhibit a c(2×8) reconstruction.

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Analysis of thin germanium-rich SiGe layers on Si(1 1 1) substrates grown by carbon-mediated epitaxy. / Genath, Hannah; Schmidt, Jan; Osten, H. Jörg.
in: Journal of Crystal Growth, Jahrgang 535, 125569, 01.04.2020.

Publikation: Beitrag in FachzeitschriftArtikelForschungPeer-Review

Genath H, Schmidt J, Osten HJ. Analysis of thin germanium-rich SiGe layers on Si(1 1 1) substrates grown by carbon-mediated epitaxy. Journal of Crystal Growth. 2020 Apr 1;535:125569. Epub 2020 Feb 20. doi: 10.1016/j.jcrysgro.2020.125569
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AU - Osten, H. Jörg

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