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Verhandlungen
Verhandlungen
DPG

Regensburg 2010 – scientific programme

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O: Fachverband Oberflächenphysik

O 59: Poster Session II (Nanostructures at surfaces: Dots, particles, clusters; Nanostructures at surfaces: arrays; Nanostructures at surfaces: Wires, tubes; Nanostructures at surfaces: Other; Plasmonics and nanooptics; Metal substrates: Epitaxy and growth; Metal substrates: Solid-liquid interfaces; Metal substrates: Adsoprtion of organic / bio molecules; Metal substrates: Adsoprtion of inorganic molecules; Metal substrates: Adsoprtion of O and/or H; Metal substrates: Clean surfaces; Density functional theory and beyond for real materials)

O 59.60: Poster

Wednesday, March 24, 2010, 17:45–20:30, Poster B1

Properties of Ultrathin Pb Layers on the Ni(001) Face — •Katarzyna Miśków, Maciej Góral, Wojciech Pawłowski, Tomasz Kraśnicki, Tomasz Kosmala, Zbigniew Jankowski, and Aleksander Krupski — Institute of Experimental Physics, University of Wroclaw, PL.Maksa Borna 9, Pl 50-204 Wroclaw, Poland

The atomic structure and morphology of ultrathin Pb layers deposited on the Ni(001) face in ultrahigh vacuum at the substrate temperature ranging from 145 K to 900 K were investigated with the use of Auger Electron Spectroscopy (AES) and Low-Energy Electron Diffraction (LEED). AES results indicate that the growth of lead layer on the Ni(001) face depends on substrate temperature. The analysis of AES measurements shows that the two-dimensional growth of the first Pb monolayer takes place for the substrate temperature from 145 K to 900 K. After the completion of the first lead monolayer, the three-dimensional growth of Pb is observed. Over the range the Stransky - Krastanov growth was observed. The Pb-Ni alloy formation was not observed. Above T > 600K, desorption of lead atoms is observed. The ordered LEED patterns corresponding to p(1x1) and c(2x2) structures have been observed.

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