Sub-Monolayer Growth of Titanium, Cobalt, and Palladium on Epitaxial Graphene

Journal article
(Original article)

Publication Details

Author(s): Sokolova A, Kilchert F, Link S, Stoehr A, Starke U, Schneider MA
Journal: Annalen Der Physik
Publication year: 2017
Volume: 529
Journal issue: 11
ISSN: 0003-3804


We deposited metals (Ti, Co, Pd) typically used as seed layers for contacts on epitaxial graphene on SiC(0001) and studied the early stages of growth in the sub-monolayer regime by Scanning Tunneling Microscopy (STM). All three metals do not wet the substrate and Ostwalt ripening occurs at temperatures below 400K. The analysis of the epitaxial orientation of the metal adislands revealed their specific alignment to the graphene lattice. It is found that the apparent height of the islands as measured by STM strongly deviates from their true topographic height. This is interpreted as an indication of the presence of scattering processes within the metal particles that increase the transparency of the metal-graphene interface for electrons. Even large islands are easily picked up by the tip of the STM allowing insight into the bonding between metal island and graphene surface and into mechanisms leading to metal intercalation.

FAU Authors / FAU Editors

Schneider, M. Alexander Prof. Dr.
Professur für Experimentalphysik
Sokolova, Anastasia
Lehrstuhl für Festkörperphysik

External institutions with authors

Max-Planck-Institut für Festkörperforschung

How to cite

Sokolova, A., Kilchert, F., Link, S., Stoehr, A., Starke, U., & Schneider, M.A. (2017). Sub-Monolayer Growth of Titanium, Cobalt, and Palladium on Epitaxial Graphene. Annalen Der Physik, 529(11).

Sokolova, Anastasia, et al. "Sub-Monolayer Growth of Titanium, Cobalt, and Palladium on Epitaxial Graphene." Annalen Der Physik 529.11 (2017).


Last updated on 2018-08-08 at 03:51