Si(001)step dynamics: a temporal low-energy electron diffraction study
In: Physical Review B : Condensed matter and materials physics, Vol. 65 (2002), No. 7, pp. 75312 - 75319
2002article/chapter in journal
Physics (incl. Astronomy)Faculty of Physics » Experimental Physics
Related: 1 publication(s)
Title:
Si(001)step dynamics: a temporal low-energy electron diffraction study
Author:
Kammler, MartinUDE
- LSF ID
- 50189
- Other
- connected with university
- GND
- 1201039908
- LSF ID
- 10366
- ORCID
- 0000-0003-0324-3457
- Other
- connected with university
Year of publication:
2002
Abstract:
We present equilibrium measurements of the dynamics of steps on Si(001) using temporal electron-diffraction spectroscopy. Activation energies and the rate limiting kinetics are identified for 950K<~T<~1130K. Unlike previous studies at higher temperatures, we can exclude evaporation and condensation of atoms or dimers from the step edges as the rate limiting process in this temperature regime. The possible reason for this difference is discussed in terms of a crossover from different rate-limiting kinetics.