Polarity of GaN Single Crystals Prepared with Na Flux
- 1 June 1998
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 37 (6R) , 3436-3440
- https://doi.org/10.1143/jjap.37.3436
Abstract
The polarity of GaN platelet and prismatic single crystals grown in sodium flux at 750°C was investigated by X-ray single-crystal diffraction. The smooth (0001) facet of platelet single crystals corresponded to the N-terminated side. The (0001) facet on which small hillocks were observed corresponded to the Ga-terminated plane. The c-axis direction from N to Ga atoms was defined as running from the pedion (flat base) to the pyramid (apex) of the prismatic crystals.Keywords
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