Regensburg 2019 – wissenschaftliches Programm
Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe
MA: Fachverband Magnetismus
MA 21: Magnetic textures: Transport and dynamics I
MA 21.5: Vortrag
Dienstag, 2. April 2019, 15:00–15:15, H38
Thermoelectrical detection of magnetization reversal in Co/Ru/Pt nanowires with interfacial Dzyaloshinskii-Moriya interaction — •Alexander Fernández Scarioni1, Sibylle Sievers1, Xiukun Hu1, William Legrand2, Fernando Ajejas Bazan2, Vincent Cros2, and Hans W. Schumacher1 — 1Physikalisch-Technische Bundesanstalt, Braunschweig, Germany — 2Unité Mixte de Physique, CNRS, Thales, Univ. Paris-Sud, Université Paris-Saclay, Palaiseau, France
Recently it was shown that inside a nanopatterned Hall cross individual skyrmion can be electrically detected by their contribution to the anomalous Hall effect (AHE) [1]. While AHE detection is intrinsically limited to Hall crosses it was recently shown that the anomalous Nernst effect (ANE), the thermoelectric analogue of the AHE, allows sensitive nano-scale characterization of the magnetization also in various nanowire geometries [2]. Here we compare ANE and AHE for the characterization of out-of-plane magnetization reversal loops in nanowires (ANE) and nanopatterned Hall crosses (AHE) of Co/Ru/Pt multilayers with interfacial Dzyaloshinskii-Moriya interaction. Both ANE and AHE loops show similar characteristics proving the suitability of ANE as a characterization tool. Comparison to magnetic force microscopy allows to correlate the loop features to the presence of stripe domains and skyrmions in the nano structures. The prospects for ANE detection of individual skyrmions inside the nanostructures will be discussed. [1] D. Maccariello, et al, Nat. Nanotech. 13, 233-237 (2018) [2] P. Krzysteczko, et al, Phys, Rev, B 95, 220410 (2017)