Please use this identifier to cite or link to this item: https://doi.org/10.1103/PhysRevB.70.235415
Title: Film growth of germanium on Ru(0001) studies by scanning tunneling microscopy
Authors: Zhang, H.J.
Lu, B.
Wang, X.-S. 
Hu, F.
Li, H.Y.
Bao, S.N.
He, P.
Issue Date: Dec-2004
Source: Zhang, H.J., Lu, B., Wang, X.-S., Hu, F., Li, H.Y., Bao, S.N., He, P. (2004-12). Film growth of germanium on Ru(0001) studies by scanning tunneling microscopy. Physical Review B - Condensed Matter and Materials Physics 70 (23) : 1-5. ScholarBank@NUS Repository. https://doi.org/10.1103/PhysRevB.70.235415
Abstract: Using in situ scanning tunneling microscopy, we observed that germanium deposited on the Ru(0001) surface near room temperature forms a two-dimensional wetting layer in the submonolayer regime, followed with growth of a segregated layer of Ge three-dimensional (3D) clusters of heights within about 1 nm. The growth of the first flat wetting layer can be understood in terms of optimal surface energy reduction by coating the Ru surface with a Ge layer which has a lower surface free energy. The nucleation and growth kinetics agrees with that derived from the conservative Ising model. Domains of a (√21 X √21)R10.9° superstructure are observed on the wetting layer. Formation of a layer consisting of 1-nm-high clusters above the wetting layer indicates that the Ge wetting layer is extremely inert so that Ge adatoms can migrate large distances on the top of the wetting layer. The 3D Ge clusters seem to have a relatively narrow size distribution.
Source Title: Physical Review B - Condensed Matter and Materials Physics
URI: http://scholarbank.nus.edu.sg/handle/10635/96631
ISSN: 10980121
DOI: 10.1103/PhysRevB.70.235415
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.

SCOPUSTM   
Citations

10
checked on Feb 19, 2018

WEB OF SCIENCETM
Citations

11
checked on Feb 19, 2018

Page view(s)

15
checked on Feb 18, 2018

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.