Details
| Original language | English |
|---|---|
| Article number | 195441 |
| Journal | Physical Review B - Condensed Matter and Materials Physics |
| Volume | 91 |
| Issue number | 19 |
| Publication status | Published - 27 May 2015 |
Abstract
By combining scanning tunneling microscopy with density functional theory it is shown that the Bi(111) surface provides a well-defined incorporation site in the first bilayer that traps highly coordinating atoms such as transition metals (TMs) or noble metals. All deposited atoms assume exactly the same specific sevenfold coordinated subsurface interstitial site while the surface topography remains nearly unchanged. Notably, 3d TMs show a barrier-free incorporation. The observed surface modification by barrier-free subsorption helps to suppress aggregation in clusters. It allows a tuning of the electronic properties not only for the pure Bi(111) surface, but may also be observed for topological insulators formed by substrate-stabilized Bi bilayers.
ASJC Scopus subject areas
- Materials Science(all)
- Electronic, Optical and Magnetic Materials
- Physics and Astronomy(all)
- Condensed Matter Physics
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In: Physical Review B - Condensed Matter and Materials Physics, Vol. 91, No. 19, 195441, 27.05.2015.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Barrier-free subsurface incorporation of 3d metal atoms into Bi(111) films
AU - Klein, Claudius
AU - Vollmers, N. J.
AU - Gerstmann, U.
AU - Zahl, P.
AU - Lükermann, Daniel
AU - Jnawali, G.
AU - Pfnür, Herbert
AU - Tegenkamp, Christoph
AU - Sutter, P.
AU - Schmidt, Wolf Gero
AU - Horn-Von Hoegen, M.
PY - 2015/5/27
Y1 - 2015/5/27
N2 - By combining scanning tunneling microscopy with density functional theory it is shown that the Bi(111) surface provides a well-defined incorporation site in the first bilayer that traps highly coordinating atoms such as transition metals (TMs) or noble metals. All deposited atoms assume exactly the same specific sevenfold coordinated subsurface interstitial site while the surface topography remains nearly unchanged. Notably, 3d TMs show a barrier-free incorporation. The observed surface modification by barrier-free subsorption helps to suppress aggregation in clusters. It allows a tuning of the electronic properties not only for the pure Bi(111) surface, but may also be observed for topological insulators formed by substrate-stabilized Bi bilayers.
AB - By combining scanning tunneling microscopy with density functional theory it is shown that the Bi(111) surface provides a well-defined incorporation site in the first bilayer that traps highly coordinating atoms such as transition metals (TMs) or noble metals. All deposited atoms assume exactly the same specific sevenfold coordinated subsurface interstitial site while the surface topography remains nearly unchanged. Notably, 3d TMs show a barrier-free incorporation. The observed surface modification by barrier-free subsorption helps to suppress aggregation in clusters. It allows a tuning of the electronic properties not only for the pure Bi(111) surface, but may also be observed for topological insulators formed by substrate-stabilized Bi bilayers.
UR - http://www.scopus.com/inward/record.url?scp=84930201412&partnerID=8YFLogxK
U2 - 10.1103/PhysRevB.91.195441
DO - 10.1103/PhysRevB.91.195441
M3 - Article
AN - SCOPUS:84930201412
VL - 91
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
SN - 1098-0121
IS - 19
M1 - 195441
ER -