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The energy of tilt grain boundaries around 〈0001〉 in GaN

✍ Scribed by Chen, Jun ;Ruterana, P. ;Nouet, G.

Publisher
John Wiley and Sons
Year
2006
Tongue
English
Weight
535 KB
Volume
203
Category
Article
ISSN
0031-8965

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✦ Synopsis

Abstract

The energy of coincidence boundaries is investigated for rotations about the [0001] axis in wurtzite GaN. A boundary may have two types of interfaces corresponding to the edge or diagonal of the unit cell of the coincidence site lattice. Their energy is shown to be a function of the structural units in the unit period, and to have only two minima which are determined for the edge boundaries in the range 0–60°. (© 2006 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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Atomic structure and relative stability
Atomic structure and relative stability of gallium and nitrogen interstitials in GaN [0001] grain boundaries
✍ Béré, A. ;Belabbas, I. ;Petit, S. ;Nouet, G. ;Ruterana, P. ;Chen, J. ;Koulidiati 📂 Article 📅 2006 🏛 John Wiley and Sons 🌐 English ⚖ 282 KB

## Abstract The atomic and electronic structures of gallium and nitrogen interstitial created at the 8‐interface of the (2$\bar 5$30) __Σ__ = 19 (__θ__ = 13.2°) tilt grain boundary in GaN were investigated by density‐functional based tight‐binding calculations. We found that the structure of lowest