Year: 2022
Type: article
Abstract: The concept of topology has dramatically expanded the landscape of magnetism, leading to the discovery of numerous magnetic textures with intriguing topological properties. A magnetic skyrmion is an emergent topological magnetic texture with a string-like structure in three dimensions and a disk-like structure in one and two dimensions. Skyrmions in zero dimensions have remained elusive owing to challenges from many competing orders. Herein, by integrating electron holography and micromagnetic simulations, we uncover the real-space magnetic configurations of a novel skyrmionic vortex structure confined in a B20-type FeGe tetrahedral nanoparticle. This texture shows excellent robustness against temperature without applying a magnetic field; an isolated skyrmionic vortex forms at the ground state. These findings shed light on zero-dimensional geometrical confinement as a route to engineer and manipulate individual skyrmionic metastructures.
Source: Nature Materials
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
Funders: National Science Foundation, U.S. Department of Energy, Ministry of Education, Culture, Sports, Science and Technology, Advanced Research Projects Agency - Energy, Office of Science, Japan Society for the Promotion of Science, RIKEN, Division of Electrical, Communications and Cyber Systems, Basic Energy Sciences, Core Research for Evolutional Science and Technology
Awards: G101116171, G1260815941, G1470919089, G3413115565, G4611347621, TOPOLOGICAL SPIN TEXTURES IN CHIRAL MAGNETS: FROM 2D TO 3D, G538583020, G5975547695, Building theory for dynamics of thermoelastic martensitic transformation, G6718509927, Magnetic strengthening - Novel approach for material strengthening-, G7002964794, Creation, Detection, and Manipulation of Isolated Magnetic Skyrmions in Nanowires for Magnetic Storage Applications, Real space observations of topological spin textures and their dynamics by electron microscopy, G7535681040, G8249228553, G8300263375, G842658433, G8886038035
OpenAlex ID: W4220672499