Mobile Néel skyrmions at room temperature: status and future

Abstract

Magnetic skyrmions are topologically protected spin textures that exhibit many fascinating features. As compared to the well-studied cryogenic Bloch skyrmions in bulk materials, we focus on the room-temperature Néel skyrmions in thin-film systems with an interfacial broken inversion symmetry in this article. Specifically, we show the stabilization, the creation, and the implementation of Néel skyrmions that are enabled by the electrical current-induced spin-orbit torques. Towards the nanoscale Néel skyrmions, we further discuss the challenges from both material optimization and imaging characterization perspectives.

This is an invited paper to be published in the AIP Advances

References in corpus (4)

• Spontaneous Skyrmion Ground States in Magnetic Metals
• Blowing Magnetic Skyrmion Bubbles
• The nature of domain walls in ultrathin ferromagnets revealed by scanning nanomagnetometry
• New pathways towards efficient metallic spin Hall spintronics

Cited by in corpus (23)

• Skyrmions in Magnetic Multilayers
• Room-temperature current-induced generation and motion of sub-100nm skyrmions
• Observation of stable Neel skyrmions in Co/Pd multilayers with Lorentz transmission electron microscopy
• Electrical signature of individual magnetic skyrmions in multilayered systems
• Néel-type skyrmions and their current-induced motion in van der Waals ferromagnet-based heterostructures
• Origin of temperature and field dependence of magnetic skyrmion size in ultrathin nanodots
• Motion of skyrmions in nanowires driven by magnonic momentum-transfer forces
• Voltage-Driven High-Speed Skyrmion Motion in a Skyrmion Shift Device
• Magnetoentropic signatures of skyrmionic phase behavior in FeGe
• Dipolar-stabilized first and second-order antiskyrmions in ferrimagnetic multilayers
• Spin-orbit torque induced dipole skyrmion motion at room temperature
• Element-specific soft X-ray spectroscopy, scattering and imaging studies of skyrmion-hosting compound Co${}_8$Zn${}_8$Mn${}_4$
• Engineered Chiral Skyrmion and Skyrmionium States by the Gradient of Curvature
• Observation of Magnetic Radial Vortex Nucleation in a Multilayer Stack with Tunable Anisotropy
• Field-tuned spin excitation spectrum of $k\pi$-skyrmion
• Energy Storage via Topological Spin Textures
• Stability of skyrmions in perturbed ferromagnetic chiral magnets
• Generation and Hall effect of skyrmions enabled via using nonmagnetic point contacts
• Configurational entropy of magnetic skyrmions as an ideal gas
• Spacetime magnetic hopfions: from internal excitations and braiding of skyrmions
• Detection of Topological Spin Textures via Non-Linear Magnetic Responses
• Controllable inter-skyrmion attractions and resulting skyrmion-lattice structures in two-dimensional chiral magnets with in-plane anisotropy
• Operando Control of Skyrmion Density in a Lorentz Transmission Electron Microscope with Current Pulses