Seminars Archive
Low-temperature scanning tunneling microscopy as a tool for surface science
Abstract
Friday, September 13, 2002, 14:30
Seminar Room, ground floor, Building "T"
Sincrotrone Trieste, Basovizza
Low-temperature scanning tunneling microscopy as a tool for surface science
Stefan Flsch
(Paul-Drude-Institut fr Festkrperelektronik, Berlin,
Germany)
ABSTRACT
The enhanced stability of STM performed at low temperatures (in the
present case at ~7 K) allows to study electronic and structural surface
properties in great detail. In addition, individual atoms and molecules
can be manipulated with atomic precision and artificial structures can
be built up at a substrate surface by controlled movements of the STM tip.
Examples will be discussed to illustrate these capabilities, namely the
observation of surface charge-density waves on antiferromagnetic Cr(110),
the nanoscale patterning of stepped metal surfaces by ionic adlayer deposition,
and if time permits preliminary results on the imaging and
lateral manipulation of single organic semiconductor molecules adsorbed
on Cu(111).
