Dresden 2020 – wissenschaftliches Programm
Die DPG-Frühjahrstagung in Dresden musste abgesagt werden! Lesen Sie mehr ...
Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe
O: Fachverband Oberflächenphysik
O 48: Poster Session - Electronic Structure of Surfaces: Spectroscopy, Surface States
O 48.9: Poster
Dienstag, 17. März 2020, 18:15–20:00, P2/EG
eMIL: advanced emission Mössbauer Spectrometer — •Dmitry Zyabkin1, Ulrich Vetter1, Fredericus Linderhof2, and Peter Schaaf1 — 1Ilmenau University of Technology, Gustav-Kirchhoff-Str. 5, 98693 Ilmenau, Germany — 2Department of Experimental Physics, Palacký University in Olomouc, 17. Listopadu 12, Olomouc, Czechia
Mössbauer spectroscopy is one of the most powerful methods to locally probe structural and electronic properties in condensed matter. The method allows to analyse and quantify various atomic surroundings, magnetic states, in-field magnetic arrangements of magnetic moments and coordination symmetry [1]. This current work presents a contemporary design of an advanced emission Mössbauer Spectrometer (eMS) eMIL equipped with a parallel-plate avalanche counter. The setup is based on an emission geometry and provides numerous advantages over conversion electron, common emission or transmission Mössbauer spectroscopy. eMIL is designed to measure hyperfine interactions in solids under various exposures. The implemented design overcomes limitations and improves performance and handling. In the current revision the implantation chamber is supplied with an UV extension - allowing to perform studies of photo-catalytic materials under external light exposure. A specifically designed motorised lid-samples-holder is fully automatised, and makes it possible to study up to 4 samples loaded in a magazine within a temperature range up to 1100 K and to perform angular-dependence-measurements in high vacuum.
[1] Gütlich et al, Mössbauer Spectroscopy, Springer (2010)