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Direct observation of the core structures of threading dislocations in GaN

✍ Scribed by Xin, Y.; Pennycook, S. J.; Browning, N. D.; Nellist, P. D.; Sivananthan, S.; Omnès, F.; Beaumont, B.; Faurie, J. P.; Gibart, P.


Book ID
120471672
Publisher
American Institute of Physics
Year
1998
Tongue
English
Weight
544 KB
Volume
72
Category
Article
ISSN
0003-6951

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A review is given of the results of first principles calculations used to investigate the structures and electronic properties of screw and edge dislocations in GaN. The atoms at the core of the full core screw dislocation possess heavily strained bonds leading to deep gap states. Removing the first