Regensburg 2022 – wissenschaftliches Programm

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MA: Fachverband Magnetismus

MA 35: Poster 2

MA 35.20: Poster

Donnerstag, 8. September 2022, 16:00–18:00, P4

Ultrafast magnetization dynamics in perovskite manganites — •Maren Schumacher, Henrike Probst, Mariana Brede, Christina Möller, Karen Stroh, Tim Titze, Cinja Seick, Sabine Steil, Marcel Reutzel, G. S. Matthijs Jansen, Daniel Steil, Vasily Moshnyaga, and Stefan Mathias — 1. Physikalisches Institut, Göttingen, Germany

Correlated manganese oxides are promising materials to realize new functionalities in spintronic applications, which are enabled by strong correlations between electrons, lattice, and spins. Femtosecond time-resolved spectroscopy has proven to be a powerful probe of these interactions. Here, we study demagnetization dynamics in thin-film perovskite manganites using magneto-optical Kerr spectroscopy (MOKE) in the visible and extreme ultraviolet (XUV) range of the spectrum. This allows us to study the samples as a function of temperature (T=10 - 400 K), magnetic field (up to B=1 T), and, in the case of using XUV probe light, with element-specificity. We will show first results of element-specific HHG-MOKE data on high-quality manganite thin film of LSMO and compare it to standard visible-MOKE.