Intrinsic stability of magnetic anti-skyrmions in the tetragonal inverse Heusler compound Mn1.4Pt0.9Pd0.1Sn

Rana Saha, Abhay K. Srivastava, Tianping Ma, Jagannath Jena, Peter Werner, Vivek Kumar, Claudia Felser and Stuart S. P. Parkin ()
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Rana Saha: Max Planck Institute of Microstructure Physics
Abhay K. Srivastava: Max Planck Institute of Microstructure Physics
Tianping Ma: Max Planck Institute of Microstructure Physics
Jagannath Jena: Max Planck Institute of Microstructure Physics
Peter Werner: Max Planck Institute of Microstructure Physics
Vivek Kumar: Max Planck Institute for Chemical Physics of Solids
Claudia Felser: Max Planck Institute for Chemical Physics of Solids
Stuart S. P. Parkin: Max Planck Institute of Microstructure Physics

Nature Communications, 2019, vol. 10, issue 1, 1-7

Abstract: Abstract Magnetic anti-skyrmions are one of several chiral spin textures that are of great current interest both for their topological characteristics and potential spintronic applications. Anti-skyrmions were recently observed in the inverse tetragonal Heusler material Mn1.4Pt0.9Pd0.1Sn. Here we show, using Lorentz transmission electron microscopy, that anti-skyrmions are found over a wide range of temperature and magnetic fields in wedged lamellae formed from single crystals of Mn1.4Pt0.9Pd0.1Sn for thicknesses ranging up to ~250 nm. The temperature-field stability window of the anti-skyrmions varies little with thickness. Using micromagnetic simulations we show that this intrinsic stability of anti-skyrmions can be accounted for by the symmetry of the crystal lattice which is imposed on that of the Dzyaloshinskii-Moriya exchange interaction. These distinctive behaviors of anti-skyrmions makes them particularly attractive for spintronic applications.

Date: 2019
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DOI: 10.1038/s41467-019-13323-x

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