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MA: Fachverband Magnetismus
MA 42: Posters Magnetism I
MA 42.11: Poster
Mittwoch, 18. März 2020, 15:00–18:00, P3
A novel approach for growing low-loss ferrimagnetic garnet nanofilms — •Christopher Heins, Robert Gruhl, Vasily Moshnyaga, and Henning Ulrichs — 1. Physikalisches Institut, Georg-August-Universität Göttingen, Germany
The ferrimagnetic insulator Yttrium iron garnet (YIG) is a popular material in magnonics due to its ultra-low magnetic damping. Thereby, it is well suited to study fundamental physics like magnon Bose-Einstein condensation, and realize filtering applications in microwave electronics. While liquid phase epitaxy methods allow since many decades to grow YIG films with micrometer thickness, nowadays pulsed laser deposited (PLD) YIG films with thicknesses of few nanometers are in the scientific focus. On this poster we report on such YIG nanofilms, which were grown by metal-organic aerosol deposition (MAD) as an alternative approach. This method allows to synthesize complex oxide films directly from its atomic constituents. Besides characterization of structural and magnetic properties by XRD and SQUID, we use a custom-built stripline Ferromagnetic Resonance setup to determine dynamic magnetic properties. We find a Gilbert damping of about (6.7±0.9)·10−4, which is comparable with typical PLD grown films. We acknowledge financial support by the DFG within the CRC 1073.