Berlin 2018 – wissenschaftliches Programm

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MA: Fachverband Magnetismus

MA 21: Poster I

MA 21.16: Poster

Dienstag, 13. März 2018, 09:30–13:00, Poster A

Interface coupling between 3d-La_0.67Sr_0.33MnO₃ and 5d-SrIrO₃ — •Lukas Bergmann, Diana Rata, and Kathrin Dörr — MLU Halle-Wittenberg, Halle, Germany

The magnetic anisotropy (MA) is a fundamental property of magnetic materials. Especially the perpendicular magnetic anisotropy (PMA) is important for new spintronic devices. We investigate how the interface coupling between 3d-La_0.67Sr_0.33MnO₃(LSMO) and 5d-SrIrO₃ (SIO) can influence the MA in the ferromagnetic LSMO. SIO is a paramagnet with a strong spin-orbit coupling [1], which can induce Dzyaloshinskii-Moriya interactions at the interface with another oxide.

Heterostructures of LSMO and SIO with different layer thickness are grown by the pulsed laser deposition (PLD). We are using TiO₂ terminated (100) SrTiO₃ as substrate. The structure characterization is done by X-Ray diffraction (XRD). The magnetic and electrical properties are investigated by SQUID and transport measurements. The results of this study and ongoing work will be presented.

[1] A. Biswas, K.-S. Kim, and Y. Jeong, Journal of Magnetism and Magnetic Materials, 400 (2015)