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Figure 6
Overview of refined models for the structures investigated. It is seen that the vacancy density increases going from the top and down. Only a single Ge layer is shown for clarity.

Journal logoSTRUCTURAL SCIENCE
CRYSTAL ENGINEERING
MATERIALS
ISSN: 2052-5206
Volume 64| Part 3| May 2008| Pages 272-280
doi:10.1107/S0108768108005119
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