Tetragonal Superstructure of the Antiskyrmion Hosting Heusler Compound Mn1.4PtSn

Vir P, Kumar N, Borrmann H, Jamijansuren B, Kreiner G, Shekhar C, Felser C (2019)

Publication Type: Journal article

Publication year: 2019

Journal

Chemistry of Materials American Chemical Society

Book Volume: 31

Pages Range: 5876-5880

Journal Issue: 15

DOI: 10.1021/acs.chemmater.9b02013

Abstract

Skyrmions in non-centrosymmetric magnets are vortex-like spin arrangements, viewed as potential candidates for information storage devices. The crystal structure and noncollinear magnetic structure together with magnetic and spin-orbit interactions define the symmetry of the skyrmion structure. We outline the importance of these parameters in the Heusler compound Mn1.4PtSn which hosts antiskyrmions, a vortex-like spin texture related to skyrmions. We overcome the challenge of growing large micro-twin-free single crystals of Mn1.4PtSn, which has proved to be the bottleneck for realizing bulk skyrmionic/antiskyrmionic states in a compound. The use of 5d-transition metal, platinum, together with manganese as constituents in the Heusler compound such as Mn1.4PtSn is a precondition for the noncollinear magnetic structure. Because of the tetragonal inverse Heusler structure, Mn1.4PtSn exhibits large magneto-crystalline anisotropy and D2d symmetry, which are necessary for antiskyrmions. The superstructure in Mn1.4PtSn is induced by Mn-vacancies, which enable a ferromagnetic exchange interaction to occur. Mn1.4PtSn, the first known tetragonal Heusler superstructure compound, opens up a new research direction for properties related to the superstructure in a family containing thousands of compounds.

Involved external institutions

Max-Planck-Institut für Chemische Physik fester Stoffe (MPI CPfS) / Max Planck Institute for Chemical Physics of Solids DE Germany (DE)

How to cite

APA:

Vir, P., Kumar, N., Borrmann, H., Jamijansuren, B., Kreiner, G., Shekhar, C., & Felser, C. (2019). Tetragonal Superstructure of the Antiskyrmion Hosting Heusler Compound Mn1.4PtSn. Chemistry of Materials, 31(15), 5876-5880. https://doi.org/10.1021/acs.chemmater.9b02013

MLA:

Vir, Praveen, et al. "Tetragonal Superstructure of the Antiskyrmion Hosting Heusler Compound Mn1.4PtSn." Chemistry of Materials 31.15 (2019): 5876-5880.

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