title: A portable microevaporator for low temperature single atom studies by scanning tunneling and dynamic force microscopy.
abstract: Here, we present a microevaporator setup for single adatom deposition at low temperature, which is a prerequisite for most single atom studies with scanning probe techniques. The construction of the microevaporator is based on the tungsten filament of a modified halogen lamp, covered with the required adsorbate. Very stable evaporation conditions were obtained, which were controlled by the filament current. The installation of this microevaporator on a manipulator enabled its transportation directly to the sample at the microscope kept at 5 K. In this way, the controlled deposition of Li onto Ag(100), Li, Pd, and Au onto MgO/Ag(001) as well as Au onto alumina/NiAl(110) at low temperature has been performed. The obtained images recorded after the deposition show the presence of single Li/Au atoms on the sample surfaces as a prove for successful dispersion of single atoms onto the sample surface using this technique.
authors: Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, D-14195 Berlin, Germany.
authors: H-P
authors: HP
authors: Rust
authors: T
authors: T
authors: König
authors: G H
authors: GH
authors: Simon
authors: M
authors: M
authors: Nowicki
authors: V
authors: V
authors: Simic-Milosevic
authors: G
authors: G
authors: Thielsch
authors: M
authors: M
authors: Heyde
authors: H-J
authors: HJ
authors: Freund