Dresden 2020 – wissenschaftliches Programm
Die DPG-Frühjahrstagung in Dresden musste abgesagt werden! Lesen Sie mehr ...
Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe
MA: Fachverband Magnetismus
MA 59: Posters Magnetism III
MA 59.38: Poster
Freitag, 20. März 2020, 09:00–12:00, P2/EG
Direct comparison of magnetization reversal loops and anomalous Hall resistivity loops of ultra-thin SrRuO3-heterostructures — G. Malsch1, •D. Ivaneiko1, P. Milde1, L. Wysocki2, L. Yang2, P. H.M. van Loosdrecht2, I. Lindfors-Vrejoiu2, and L. M. Eng1,3 — 1Institute for Applied Physics, TU Dresden, 01062 Dresden, Germany — 2II. Physikalisches Institut, Universität zu Köln, 50937 Köln, Germany — 3ct.qmat, Dresden-Würzburg Cluster of Excellence - EXC 2147, TU Dresden, 01062
Recently, it was proposed that ultrathin epitaxial layers of SrRuO3/SrIrO3 heterostructures might host magnetic skyrmions. In such thin films unit, skyrmions usually arise due to broken inversion symmetry at interfaces. The resultant interfacial Dzyaloshinskii-Moriya interaction was predicted to become sizeable through large spin-orbit coupling of the transition metals Ru and Ir. The presence of skyrmions is commonly indirectly proven through macroscopic magneto-transport measurements, then indicating the topological nature through hump-like anomalies observed in the Anomalous Hall effect (AHE) resistivity loops. Here, we investigate the structural and magnetic properties of a 4uc-SRO/2uc-SIO heterostructure comparing their physical properties by measurements with various techniques such as MOKE, AHE transport measurements, nc-SFM and MFM. As a result, we prove that local variations within the 4uc-SRO/2uc-SIO layer cause variations in the local switching fields that are the origins of the hump-like anomalies observed in AHE.