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Physical Review B (Condensed Matter and Materials Physics) -- November 15, 2000 -- Volume 62, Issue 19, pp. 12636-12639

Roughening due to edge diffusion for irreversible aggregation

C. Ratsch,^1,2 M. C. Wheeler,² and M. F. Gyure¹

¹HRL Laboratories LLC, 3011 Malibu Canyon Road, Malibu, California 90265
²Department of Mathematics, University of California, Los Angeles, California 90095-1555

(Received 22 November 1999; revised 1 March 2000)

We show that fast edge diffusion in a simple kinetic Monte Carlo simulation for epitaxial growth enhances surface roughening for a model of irreversible aggregation. The reason for this is a simple, but rather subtle effect: Faster edge diffusion makes the islands more compact, leading to a significant adatom concentration on top of islands at earlier times. As a consequence, nucleation in higher layers occurs faster, increasing the surface roughness. We also demonstrate that fast edge diffusion can effectively contribute to diffusion of small clusters, and can produce unexpected scaling results. ©2000 The American Physical Society

URL: http://link.aps.org/abstract/PRB/v62/p12636
PACS: 61.43.Hv        Additional Information

References

1. S. Clarke and D. D. Vvedensky, J. Appl. Phys. 63, 2272 (1988).
   
2. T. Shitara, D. D. Vvedensky, M. R. Wilby, J. Zhang, J. H. Neave, and B. A. Joyce, Phys. Rev. B 46, 6615 (1992).
   
3. G. Ehrlich and F. G. Hudda, J. Chem. Phys. 44, 1039 (1966).
   
4. R. L. Schwoebel and E. J. Shipsey, J. Appl. Phys. 37, 3682 (1966).
   
5. P. milauer and D. D. Vvedensky, Phys. Rev. B 47, 4119 (1993).
   
6. J. Villain, J. Phys. I 1, 19 (1991). [INSPEC]
   
7. M. D. Johnson, C. Orme, A. W. Hunt, D. Graff, J. Sudijono, L. M. Sander, and B. G. Orr, Phys. Rev. Lett. 72, 4246 (1994).
   
8. B. D. Yu and M. Scheffler, Phys. Rev. Lett. 77, 1095 (1996).
   
9. A. Bogicevic, J. Strömquist, and B. I. Lundqvist, Phys. Rev. Lett. 81, 637 (1998).
   
10. G. S. Bales and D. C. Chrzan, Phys. Rev. B 50, 6057 (1994).
    
11. C. Ratsch, M. F. Gyure, S. Chen, M. Kang, and D. D. Vvedensky, Phys. Rev. B 61, R10 598 (2000).
    
12. O. Pierre-Louis, M. R. D'Orsogna, and T. L. Einstein, Phys. Rev. Lett. 82, 3661 (1999).
    
13. M. V. Ramana Murty and B. H. Cooper, Phys. Rev. Lett. 83, 352 (1999).
    
14. S. Das Sarma, P. Punyindu, and Z. Toroczkai, cond-mat/9908013 (unpublished).
    
15. We note that there is already a speculation about this mechanism in Ref. 13.
    
16. Z.-P. Shi, Z. Zhang, A. K. Swan, and J. F. Wendelken, Phys. Rev. Lett. 76, 4927 (1996).
    
17. P. J. Feibelman, Phys. Rev. Lett. 58, 2766 (1987).
    
18. A. Bogicevic, P. Hyldgaard, G. Wahnström, and B. I. Lundqvist, Phys. Rev. Lett. 81, 172 (1998).
    
19. J. A. Venables, G. D. T. Spiller, and M. Hanbücken, Rep. Prog. Phys. 47, 399 (1984). [INSPEC]
    
20. L. Kuipers and R. E. Palmer, Phys. Rev. B 53, R7646 (1996).
    
21. J. Villain, A. Pimpinelli, L. Tang, and D. E. Wolf, J. Phys. I 2, 2107 (1992). [INSPEC]
    
22. Y. W. Mo, J. Kleiner, M. B. Webb, and M. G. Lagally, Phys. Rev. Lett. 66, 1998 (1991).
    
23. J. A. Stroscio, D. T. Pierce, and R. A. Dragoset, Phys. Rev. Lett. 70, 3615 (1993).
    
24. H. Brune, K. Bromann, H. Röder, K. Kern, J. Jacobsen, P. Stoltze, K. Jacobsen, and J. Nørskov, Phys. Rev. B 52, R14 380 (1995).
    

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Citing Articles

1. Atomic size effects in continuum modeling
   C. Ratsch et al., Phys. Rev. E 64, 020601 (2001)