Simulation of Langmuir-Blodgett Film Surface STM Images
V.E. Agabekov, G.K. Zhavnerko
Institute of Physical Organic Chemistry, Belarus Academy of Sciences, Minsk 220072, Belarus

G. Bar and H.-J. Cantow
Freiburger Materialforschungszentrum, Albert-Ludwigs-Universit├Ąt, Freiburg 79104, Germany
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The simulation of the STM image of a hydrocarbon tail of a fatty acid was carried out and compared to the experimental results. The simulation procedure includes calculations of the distribution of an isolated molecule electronic density by the extended Huckel-Hoffmann method. An agreement between the calculated and experimental STM images of closely packed Langmuir-Blodgett film of cobalt behenate on the graphite surface was observed. The weak interactions between the graphite surface and the adsorbed molecules constituting bi- and multilayer Langmuir-Blodgett films can be neglected in simulations of STM images.
DOI: 10.12693/APhysPolA.93.383
PACS numbers: 68.55.-a, 71.20.Rv, 02.60.Cb