Damping of oscillations in layer-by-layer growth
In: International journal of modern physics B ( IJMPB ), Jg. 11 (1997), Heft 31, S. 3621 - 3634
1997Artikel/Aufsatz in Zeitschrift
Physik (inkl. Astronomie)
Titel:
Damping of oscillations in layer-by-layer growth
Autor*in:
Kallabis, Harald;Brendel, LotharUDE
- LSF ID
- 1802
- Sonstiges
- der Hochschule zugeordnete*r Autor*in
- GND
- 1273280393
- LSF ID
- 1114
- Sonstiges
- der Hochschule zugeordnete*r Autor*in
Erscheinungsjahr:
1997
Abstract:
We present a theory for the damping of layer-by-layer growth oscillations in molecular beam epitaxy. The surface becomes rough on distances larger than a layer coherence length which is substantially larger than the diffusion length. The damping time can be calculated by a comparison of the competing roughening and smoothening mechanisms. The dependence on the growth conditions, temperature and deposition rate, is characterized to be a power law. The theoretical results are confirmed by computer simulations.