AVS 47th International Symposium
    Processing at the Nanoscale/NANO 6 Monday Sessions
       Session NS+NANO6-MoA

Paper NS+NANO6-MoA8
Benzene and Its Derivatives on Transition Metal (111) Surfaces

Monday, October 2, 2000, 4:20 pm, Room 302

Session: Manipulation of Atoms and Molecules
Presenter: Y.-J. Song, Seoul National University, Korea
Authors: Y.-J. Song, Seoul National University, Korea
J.-Y. Park, Seoul National University, Korea
U.D. Ham, Seoul National University, Korea
H.J. Kim, Seoul National University, Korea
Y. Kuk, Seoul National University, Korea
Correspondent: Click to Email
Benzene and its derivatives such as bromobenzene, iodobenzene, and xylene, adsorbed on transition metal surfaces (Cu and Pd) have been investigated with an ultrahigh vacuum low temperature scanning tunneling microscope (STM). At room temperature, these molecules are highly mobile so that it is difficult to study low coverage behaviors. On the other hand, they form close-packed ordered structure with three different domains at saturation coverage, as observed with STM. At low temperature, the mobility of molecules is reduced that single molecules can be studied. With high-resolution imaging capability of our STM, internal structures of molecules are revealed. Therefore, different isomers can be distinguished. Furthermore, manipulation of these molecules is performed with the STM tip. Possible mechanisms of different manipulation modes will also be discussed. The possibility of STM-induced molecular reaction will also be presented.