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MA: Fachverband Magnetismus

MA 42: Posters Magnetism I

MA 42.19: Poster

Mittwoch, 18. März 2020, 15:00–18:00, P3

Study of Ultrafast Magnetization Dynamics in Perovskite Oxide Films by use of Extreme Ultraviolet Light — •Henrike Probst, Christina Möller, Johannes Otto, Cinja Seick, Matthijs Jansen, Sabine Steil, Daniel Steil, Vasily Moshnyaga, and Stefan Mathias — 1. Physikalisches Institut, Göttingen, Germany

Ultrafast spin dynamics has become an active field of research since the seminal work of Beaurepaire in 1996 [1]. Despite numerous experimental and theoretical works, the magnetization dynamics in complex systems such as alloys, multilayers and strongly correlated electron systems are still barely explored.

To investigate ultrafast magnetization dynamics in thin film perovskite oxides, we built up a new element-specific high-harmonic-generation-based magneto-optical Kerr (HHG-MOKE) setup. It allows to apply magnetic fields, B=0-1 T, and to vary the sample temperature, T=4-400 K, to control the magnetic phase of the film.

We will present first element-specific HHG-MOKE data on high quality thin perovskite films prepared by metalorganic aerosol deposition technique.

[1] E. Beaurepaire et al., Phys Rev Lett 76, 4250 (1996).