Dresden 2020 – wissenschaftliches Programm

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AKjDPG: Arbeitskreis junge DPG

AKjDPG 6: Hacky Hour

AKjDPG 6.8: Vortrag

Freitag, 20. März 2020, 11:30–11:45, HSZ 105

LEED Analysis Software: LEEDCal and LEEDLab — •Roman Forker, Felix Otto, Falko Sojka, and Torsten Fritz — Institute of Solid State Physics, Helmholtzweg 5, 07743 Jena (Germany)

Low-energy electron diffraction (LEED) can be used to measure surface lattice parameters very accurately, under the condition that the device is properly calibrated. LEEDCal provides a powerful algorithm to determine and correct systematic distortions in LEED images. Easy to operate via its graphical user interface, LEEDCal automatically generates a correction matrix upon analyzing a reference sample exhibiting a well-known surface structure. This matrix can be applied to rectify all future diffraction patterns recorded with the same LEED device. This also works in batch mode.

The results allow interpreting accurately and objectively the lattice constants and epitaxial relations when used in combination with LEEDLab, a software package that simulates LEED patterns and analyzes them quantitatively.

In our contribution, we demonstrate the functionality of the LEED analysis software packages LEEDCal and LEEDLab by means of an instructive example.

https://www.organics.uni-jena.de/en/Research.html