SKM 2023 – wissenschaftliches Programm
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DS: Fachverband Dünne Schichten
DS 12: Poster
DS 12.25: Poster
Mittwoch, 29. März 2023, 17:00–19:00, P3
Characterization of structural and magnetic properties of SrRuO3 thin films — •Vitor de Oliveira Lima1, Mai Hussein Hamed1, Connie Bednarski-Meinke1, Michael Faley2, Emmanuel Kentzinger1, and Thomas Brückel1 — 1Jülich Centre for Neutron Science (JCNS-2) and Peter Grünberg Institute (PGI-4), JARA-FIT, Forschungszentrum Jülich GmbH, Germany. — 2Ernst Ruska-Centre for Microscopy and Spectroscopy with Electrons (ERC), Forschungszentrum Jülich GmbH, Germany.
Proximity effects in Ferromagnet/Superconductor Heterostructures (F/S-H) have demonstrated high potential for development of new devices for spintronic and quantum computing application. SrRuO3 (SRO) has attracted much attention among transition metal oxides for being the only 4d oxide to show itinerant ferromagnetism and metallic conductivity. In this work, we are characterizing the crystal structure as well the magnetic properties of SRO thin films for further application in F/S-H with YBa2Cu3O7−x superconducting films. The samples were prepared on STO (001) single crystals by High-Oxygen Pressure Sputtering. SRO thin films are epitaxial and have smooth surface. Magnetometry indicate that samples have out-of-plane magnetic anisotropy and paramagnetic-ferromagnetic transition at approximately 150 K, which corresponds to the SRO with Ru4+ Curie temperature, and two transitions at lower temperatures, that may be related to another Ru oxidation state. The samples stoichiometry will be further investigated by Rutherford Backscattering Spectroscopy.