Köhler, Ulrich; Jensen, C.; Wolf, C; Schindler, Alexander; Brendel, Lothar; Wolf, Dietrich:
Investigation of homoepitaxial growth on bcc surfaces with STM and kinetic Monte Carlo simulation
2000
In: Surface science, Band 454-456 (2000), S. 676 - 680
Artikel/Aufsatz in Zeitschrift / Fach: Physik
Titel:
Investigation of homoepitaxial growth on bcc surfaces with STM and kinetic Monte Carlo simulation
Autor(in):
Köhler, Ulrich; Jensen, C.; Wolf, C; Schindler, Alexander im Online-Personal- und -Vorlesungsverzeichnis LSF anzeigen; Brendel, Lothar im Online-Personal- und -Vorlesungsverzeichnis LSF anzeigen; Wolf, Dietrich im Online-Personal- und -Vorlesungsverzeichnis LSF anzeigen
Erscheinungsjahr
2000
Erschienen in:
Surface science, Band 454-456 (2000), S. 676 - 680
ISSN
DOI
Signatur der UB

Abstract:

Time-resolved in situ STM has been applied to the system Fe on Fe(110) to study the characteristics of homoepitaxial growth on bcc surfaces. Additionally the growth of W on W(110) has been investigated which shows the same behaviour at 500°C as iron at room temperature. The resulting data are compared with kinetic Monte Carlo simulation which include the correct symmetry of the bcc(110) surface. It is found that islands grow strongly anisotropically elongated in [100] which is due to a hindered diffusion at step edges along [001]. At room temperature the inter-layer diffusion is suppressed by a step edge barrier which leads at higher coverages to a kinetic roughening and a complete faceting of the surface. The developing stable facets were investigated by SPA-LEED.