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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
materials science
Atomistic modeling of the (a+c) -mixed dislocation core in wurtzite GaN
Physical Review B - Condensed Matter and Materials Physics, Volume 75, No. 11, Article 115201, Year 2007
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Description
An atomistic simulation of the threading (a+c) -mixed dislocation core in wurtzite GaN has been carried out. Starting from models generated in the framework of continuum elasticity theory, two core configurations are obtained independently by using an empirical potential and a tight-binding based ab initio method. The most energetically favorable core with a 5 7 -atoms ring structure is fully coordinated without wrong bonds, whereas the other with a complex double 5 6 -atoms ring structure contains two rows of dangling bonds. Both core configurations introduce empty states spread over the upper half of the band gap. © 2007 The American Physical Society.
Authors & Co-Authors
Belabbas, Imad
France, Caen
École Nationale Supérieure D’ingénieurs de Caen
Algeria, Bejaia
Université Abderrahmane Mira - Béjaïa
Béré, Antoine
France, Caen
École Nationale Supérieure D’ingénieurs de Caen
Burkina Faso, Ouagadougou
University of Ouagadougou
Chen, Jun
France, Damigny
Institut Universitaire de Technologie D'alençon
Petit, S.
France, Caen
École Nationale Supérieure D’ingénieurs de Caen
Belkhir, Mohamed Akli
Algeria, Bejaia
Université Abderrahmane Mira - Béjaïa
Rutérana, Pierre
France, Caen
École Nationale Supérieure D’ingénieurs de Caen
Nouet, Gérard
France, Caen
École Nationale Supérieure D’ingénieurs de Caen
Statistics
Citations: 39
Authors: 7
Affiliations: 4
Identifiers
Doi:
10.1103/PhysRevB.75.115201
ISSN:
10980121
e-ISSN:
1550235X