Vacancy structures on the GaN(0001) surface
- 1 March 1997
- journal article
- Published by Springer Nature in Journal of Materials Research
- Vol. 12 (3) , 646-650
- https://doi.org/10.1557/jmr.1997.0098
Abstract
Scanning tunneling microscopy images are reported for the wurtzite GaN(0001) surface. Terraces are observed, with three kinds of defect structures that are assigned to ordered N-vacancies: (i) striations perpendicular to the step edges, (ii) row defects spaced about 16 Å that intersect the steps at an angle of 30°, and (iii) “oval” defects that result from intersections of lines of vacancies (oriented at 60° with respect to step edges) with the row defects.Keywords
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