Dresden 2020 – wissenschaftliches Programm

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TT: Fachverband Tiefe Temperaturen

TT 25: Skyrmions I (joint session MA/TT)

TT 25.9: Vortrag

Dienstag, 17. März 2020, 12:00–12:15, POT 6

Observation of anti-skyrmions in Mn2Rh0.95Ir0.05Sn Heusler compound — •Jagannath Jena1, Rolf Stinshoff2, Rana Saha1, Abhay K. Srivastava1, Tianping Ma1, Hakan Deniz1, Peter Werner1, Claudia Felser2, and Stuart S. P. Parkin11Max Planck Institute of Microstructure Physics, Weinberg 2, 06120 Halle, Germany — 2Max Planck Institute for Chemical Physics of Solids, Nöthnitzer Str. 40, 01187 Dresden, Germany

Magnetic anti-skyrmions are topologically protected nanoscopic chiral spin textures. They are composed of alternating boundary of Bloch and Néel domain walls. Recently anti-skyrmions have been discovered in a ferromagnetic tetragonal inverse Heusler compound Mn1.4Pt0.9Pd0.1Sn [1]. Here we report the observation of anti-skyrmions in a ferrimagnetic Heusler compound Mn2Rh0.95Ir0.05Sn using Lorentz transmission electron microscopy. This compound has a lower magnetic moment which orders at 270 K. Our results may pave the way to search for antiskyrmions in a ferrimagnetic material with a very low magnetic moment for future spintronic applications. [1]Nayak et al., Nature 548, 561 (2017).

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