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What does an (a+c) dislocation core look like in wurtzite GaN ?

  • Imad Belabbas (a1), Gerard Nouet (a2), A. Béré (a3), J. Chen (a4), S. Petit (a5), M.A. Belkhir (a6), P. Ruterana (a7) and Ph. Komninou (a8)...

Abstract

Here we present results on the first atomic simulation of the threading (a+c)-mixed dislocation cores in wurtzite GaN. These calculations are based on a modified Stillinger-Weber potential. For this dislocation two core configurations are shown to be stable, one with a complex double 5/6-atoms rings and the other a with 5/7-atom rings structures. The two cores contain neither wrong nor dangling bonds.

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1. Orton, J.W. and Foxton, C.T., Rep. Prog. Phys. 61, 1 (1998).
2. Morkoç, H., Cingoıani, R., Lambrecht, W., Gil, B., Jiang, H. X., Lin, J., Pavlidis, D. and Shenai, K., MRS Internet J. Nitride Semicond. Res. 4S1, G1.2 (1999).
3. Strite, S., Lin, M.E., Morkoç, H., Thin Solid Films 231, 197 (1992).
4. Jain, S.C., Willander, M., Narayan, J. and Van Overstraeten, R., J. Appl. Phys. 87, 965 (2000).
5. Ponce, F.A., Cherns, D., Young, W.T. and Steeds, J.W., Appl. Phys. Lett. 69, 770 (1996).
6. Gibart, P., Beaumont, B. and Vennegues, P., “in Nitride Semiconductors, Handbook on Materials and Devices”, edited by Ruterana, P., Albrecht, M. and Neugebauer, J. (WILEY-VCH GmbH & Co. 2003) p 45.
7. Qian, W., Rohrer, G.S., Skowrnonski, M., Doverspike, K., Rowland, L. B. and Gaskill, D. K, Appl. Phys. Lett. 67, 2284 (1995).
8. Hsu, J.W.P., Manfra, M.J., Chu, S.N.G., Chen, C.H., Pfeiffer, L.N. and Molnar, R.J., Appl. Phys. Lett., 78, 3980 (2001).
9. Xin, Y., Pennycoock, S. J., Browning, N. D., Nelist, P. D., Sivananthan, S., Omnès, F., Beaumont, B., Faurie, J. P. and Gibart, P., Appl. Phys. Lett., 72, 2680 (1998).
10. Blumenau, A.T.., Fall, C.J., Elsner, J., Jones, R., Heggie, M.I. and Frauenheim, Th., Phys. Stat. Sol. (c), 0, 1684 (2003).
11. Ruterana, P., Potin, V., Nouet, G., Bonnet, R. and Loubradou, M., Mater. Sci. Eng. B59, 177 (1999)
12. Arslan, I., Bleloch, A., Stach, E.A. and Browning, N.D., Phys. Rev. Lett., 94, 025504 (2005).
13. Finnis, M., 2003, in “Forces in Condensed Matter”, (Oxford University Press, Oxford).
14. Béré, A., and Serra, A., Phys. Rev. B 65, 205323 (2002).
15. Northrup, J.E., Negebauer, J. and Romano, L.T. Phys. Rev. Lett. 77, 103 (1996).
16. Chen, J., Ruterana, P., and Nouet, G., Phys. Rev. B, 67, 205210 (2003).
17. Hirth, J.P. and Lothe, J., “Theory of dislocations” (Wiley, New York, 1982).
18. de Wit, R., J. Res. Natl. Bur. Stand. U. S. 77A, 608 (1973).
19. Verlet, L., Phys. Rev. 159, 98 (1967).
20. Béré, A., Chen, J., Ruterana, P., Serra, A. and Nouet, G., Comput. Mater. Sci., 24, 144 (2002).
21. Chen, J., Ruterana, P. and Nouet, G., Mater. Sci. Eng, B 82, 117 (2001).
22. Wang, D., Ichikawa, M. and Yoshida, S., Philos. Mag. Lett. 82, 119 (2002).

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What does an (a+c) dislocation core look like in wurtzite GaN ?

  • Imad Belabbas (a1), Gerard Nouet (a2), A. Béré (a3), J. Chen (a4), S. Petit (a5), M.A. Belkhir (a6), P. Ruterana (a7) and Ph. Komninou (a8)...

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