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Figure 1
Schematic diagrams (a)–(e) illustrating various examples of manipulating out-of-plane polarity of GaN films. The thickness of insertion layers in (a) and (b) is exaggerated for clarity. (f) The in-plane polarity inversion reported in this work.

Journal logoJOURNAL OF
APPLIED
CRYSTALLOGRAPHY
ISSN: 1600-5767
Volume 46| Part 2| February 2013| Pages 443-447
doi:10.1107/S0021889813000654
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