Kinetics of mesa overlayer growth: Climbing of adatoms onto the mesa top
| Title | Kinetics of mesa overlayer growth: Climbing of adatoms onto the mesa top |
| Publication Type | Journal Article |
| Year of Publication | 2008 |
| Authors | Han Y, Liu F, Li SC, Jia JF, Xue QK, Lee BJ |
| Journal Title | Applied Physics Letters |
| Volume | 92 |
| Pages | 021909 |
| Date Published | Jan |
| Type of Article | Article |
| ISBN Number | 0003-6951 |
| Accession Number | ISI:000252470900041 |
| Keywords | diffusion |
| Abstract | We have calculated the energy barriers for an adatom climbing up onto a Pb mesa top either over a facet-facet edge or through a facet-step joint, using a modified embedded atom method. We found that the second process is not only thermodynamically more favorable than the first one but also much faster with a diminishing barrier. Our results provide a plausible explanation for the experimentally observed intriguing growth behavior of a Pb mesa. The underlying mechanisms can be generally applicable to other systems. (c) 2008 American Institute of Physics. |
| DOI | 10.1063/1.2827200 |
| Alternate Journal | Appl. Phys. Lett. |
