[11]Anthrahelicene on InSb(001) c(8×2): a low-temperature scanning probe microscopy study.
The adsorption of individual [11]anthrahelicene molecules and their self-assembly into monolayer islands on an InSb(001) c(8×2) reconstructed surface is studied with low-temperature scanning probe microscopy. A racemic mixture is deposited on atomically flat terraces of InSb at room temperature. At lower coverage, the molecules tend to decorate atomic step edges of the substrate. At higher coverage, [11]anthrahelicene molecules form 2D islands. A quasi-hexagonal ordering of molecules within the layer is identified. Furthermore, it is shown that molecules adsorb with the helical axis almost perpendicular to the substrate. Interference between tunneling through the molecular layer and directly through space is reported. Finally, experimental results are compared to those of theoretical calculations.
Prauzner-Bechcicki
Jakub S
JS
Centre for Nanometer-Scale Science and Advanced Materials, NANOSAM, Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, Reymonta 4, Krakow, Poland. jakub.prauzner-bechcicki@uj.edu.pl
Godlewski
Szymon
S
Budzioch
Janusz
J
Goryl
Grzegorz
G
Walczak
Lukasz
L
Sehnal
Petr
P
Stará
Irena G
IG
Starý
Ivo
I
Ample
Francisco
F
Joachim
Christian
C
Szymonski
Marek
M