TY  - JOUR
AU  - Ikonomov, J.
AU  - Bach, P.
AU  - Merkel, R.
AU  - Sokolowski, M.
TI  - Surface diffusion constants of large organic molecules determined from their residence times under a scanning tunneling microscope tip
JO  - Physical review / B
VL  - 81
IS  - 16
SN  - 1098-0121
CY  - College Park, Md.
PB  - APS
M1  - PreJuSER-9564
SP  - 161412
PY  - 2010
N1  - We thank Ch. Schmitz for experimental help and E. Barkai for theoretical advice. Support by the DFG is acknowledged.
AB  - We introduce a method to determine the lateral diffusion constants of planar organic molecules adsorbed on surfaces from the temporal width tau of pulses in the tunneling current measured for a stationary scanning tunneling microscope tip. The method uses the molecular footprint as a scale bar and evaluates tau as the first-passage time. Temperature-dependent diffusion constants are reported for the two model molecules copper phthalocyanine and 3,4,9,10-perylene-tetracarboxylic-dianhydride adsorbed on the Ag(100) surface.
KW  - J (WoSType)
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000277217200028
DO  - DOI:10.1103/PhysRevB.81.161412
UR  - https://juser.fz-juelich.de/record/9564
ER  -