Regensburg 2022 – wissenschaftliches Programm
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O: Fachverband Oberflächenphysik
O 58: Poster Wednesday: New Methods and Developments, Frontiers of Electronic Structure Theory
O 58.12: Poster
Mittwoch, 7. September 2022, 18:00–20:00, P4
Home-Built UHV Suitcase — •Luca Lezuo1, Lucie Dockalová2, Gareth Parkinson1, Ulrike Diebold1, and Jiri Pavelec1 — 1Institute of Applied Physics, TU Wien, Wiedner Hauptstrasse 8-10/134, Vienna, Austria — 2Institute of Physical Engineering, Brno University of Technology
Due to their extreme sensitivity to adsorbing molecules, most surface experiments have to be carried out in ultra-high vacuum (UHV). Ideally, multiple different techniques are used to explain and understand the phenomena happening on an atomic scale. To this end, it is often necessary to transfer a sample from one chamber to another.
As a showcase, we discuss the analysis of perovskite oxides, produced by pulsed laser deposition (PLD) as thin films, in another UHV chamber that allows atomically resolved STM/AFM imaging with a Q+-sensor at liquid N2/He - temperatures. The home built UHV suitcase consists of three stages divided by gate valves. It has a scroll pump for rough vacuum, a turbo pump to reach high vacuum, a NEG pump and a cryopump to ensure a clean transfer and an ION/NEG combination to provide UHV conditions long term in the storage stage, where the sample is transported.