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MA: Fachverband Magnetismus

MA 4: Magnetic Heusler Compounds and Complex Magnetic Oxides

MA 4.2: Vortrag

Montag, 18. März 2024, 09:45–10:00, EB 107

Exploring non-collinear ground states in Mn₂RhSn and Mn₂IrSn Heusler Magnets — •Jorge Cardenas-Gamboa¹, Rebeca Ibarra¹, Paul McClarty², Markou Anastasios³, Edouard Lesne¹, Maia Vergniory^1,4, and Claudia Felser¹ — ¹Max Planck Institute for Chemical Physics of Solids, 01187 Dresden, Germany — ²Max Planck Institute for the Physics of Complex Systems, 01187 Dresden, Germany — ³Physics Department, University of Ioannina, 45110 Ioannina, Greece — ⁴Donostia International Physics Center, 20018 Donostia-San Sebastian, Spain

Non-collinear magnetism has emerged as a fundamental and experimentally intriguing aspect of magnetism as one of the most non trivial aspects because of novel topological spin textures (skyrmions) and its potential applications in spintronic devices. Experiments on Mn₂RhSn have reported an unusual ground state with magnetic canting and a temperature-induced transition into the collinear ferrimagnetic mode.

In this work, we employ first-principles calculations to implement a mean-field approximation of the ground state in Mn₂RhSn and Mn₂IrSn compounds. This computational approach aims to provide deeper insights into exchange interactions and the magnetic orientation behaviour observed in the experiments.

Keywords: Heusler magnet; Non-collinear; Anomalous Hall Conductivity; Magnetism; Ground state