Dresden 2020 – scientific programme
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TT: Fachverband Tiefe Temperaturen
TT 25: Skyrmions I (joint session MA/TT)
TT 25.9: Talk
Tuesday, March 17, 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. Parkin1 — 1Max 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).