Local setting of spin textures in a granular antiferromagnet

Abstract

Controlling the magnetic order of antiferromagnets is challenging due to their vanishing net magnetization. For this reason, the study of local spin textures in antiferromagnets is restricted by the difficulty in nucleating such states. Here, using atomistic simulations we demonstrate a method for nucleating localized spin textures in the grains of thin film antiferromagnet, $\gamma$-IrMn${}_3$. Utilising the exchange bias coupling between a ferromagnet and an antiferromagnet, we set the spin texture in the latter from a predefined spin texture in the former by means of a thermal cycling procedure. The local textures set in the antiferromagnetic grains are shown to be stable against field perturbations. We also discuss how various material parameters affect the efficiency of the setting and the characteristics of these set textures. The setting of antiferromagnetic spin textures provides a potential route to antiferromagnetic spintronic devices with non-collinear spin states such as skyrmions, bubbles and domain walls.

References in corpus (27)

• Berry Phase Effects on Electronic Properties
• Antiferromagnetic spintronics
• Antiferromagnetic spintronics
• Altermagnetism: spin-momentum locked phase protected by non-relativistic symmetries
• Room temperature chiral magnetic skyrmion in ultrathin magnetic nanostructures
• Atomistic spin model simulations of magnetic nanomaterials
• Anomalous Hall effect arising from noncollinear antiferromagnetism
• Anatomy of Dzyaloshinskii-Moriya Interaction at Co/Pt Interfaces
• Observation of the Anomalous Hall Effect in a Collinear Antiferromagnet
• Static and Dynamical Properties of Antiferromagnetic Skyrmions in the Presence of Applied Current and Temperature
• Efficient Electrical Spin-Splitter Based on Non-Relativistic Collinear Antiferromagnetism
• Antiferromagnetic Skyrmion: Stability, Creation and Manipulation
• Tilted spin current generated by the collinear antiferromagnet RuO2
• A theory on skyrmion size and profile
• Spin-polarized current in non-collinear antiferromagnets
• Antiferromagnetic skyrmion crystals: generation, topological Hall and topological spin Hall effect
• Giant magnetic anisotropy of the bulk antiferromagnets IrMn and IrMn3
• Dzyaloshinskii Moriya interaction across antiferromagnet / ferromagnet interface
• Theory of Topological Spin Hall Effect in Antiferromagnetic Skyrmion: Impact on Current-induced Motion
• B-T phase diagram of Pd/Fe/Ir(111) computed with parallel tempering Monte Carlo
• Ultrafast generation and dynamics of isolated skyrmions in antiferromagnetic insulators
• Magnetic domain texture and the Dzyaloshinskii-Moriya interaction in Pt/Co/IrMn and Pt/Co/FeMn thin films with perpendicular exchange bias
• The family of topological Hall effects for electrons in skyrmion crystals
• Extraordinary temperature dependent magnetic anisotropy of the non-collinear antiferromagnet IrMn
• The origin of exchange bias in multigranular non-collinear IrMn${}_3$/CoFe thin films
• Imprint from ferromagnetic skyrmions in an antiferromagnet via exchange bias
• Temperature and thickness dependence of tunneling anisotropic magnetoresistance in exchange-biased Py/IrMn/MgO/Ta stacks

Cited by in corpus (1)

• Imprinting of skyrmions and bimerons in an antiferromagnet