Telychko Mykola, Berger Jan, Majzik Zsolt, Jelínek Pavel, Švec Martin
Institute of Physics, Academy of Sciences of the Czech Republic, Cukrovarnická 10, CZ-16200 Prague, Czech Republic ; Charles University, Faculty of Mathematics and Physics, V Holešovičkách 2, Praha 8, Czech Republic.
Institute of Physics, Academy of Sciences of the Czech Republic, Cukrovarnická 10, CZ-16200 Prague, Czech Republic ; Department of Physical Electronics, Faculty of Nuclear Sciences and Physical Engineering, Czech Technical University in Prague, Břehová 7, CZ-11519 Prague, Czech Republic.
Beilstein J Nanotechnol. 2015 Apr 7;6:901-6. doi: 10.3762/bjnano.6.93. eCollection 2015.
We investigated single-layer graphene on SiC(0001) by atomic force and tunneling current microscopy, to separate the topographic and electronic contributions from the overall landscape. The analysis revealed that the roughness evaluated from the atomic force maps is very low, in accord with theoretical simulations. We also observed that characteristic electron scattering effects on graphene edges and defects are not accompanied by any out-of-plane relaxations of carbon atoms.