The dynamic chirality flips of Skyrmion bubbles

Abstract

Magnetic skyrmion, a topological magnetic domain with complex non-coplanar spin texture, appears a disk-like structure in two dimensions. Exploring three-dimensional spin texture and related chirality switching has drawn enormous interests from the perspective of fundamental research. Here, the three-dimensional magnetic moment of the skyrmion bubbles in centrosymmetric Mn-Ni-Ga were reconstructed with the vector field tomography approach via Lorentz transmission electron microscopy. The type of the bubbles was determined from investigating the magnetic vectors in entire space. We found that the bubbles switched their chirality easily but still keep the polarity to remain the singularity of the bubbles within the material. Our results offer valuable insights into the fundamental mechanisms underlying the spin chirality flips dynamics of skyrmion bubbles.

References in corpus (6)

• Direct imaging of a zero-field target skyrmion and its polarity switch in a chiral magnetic nanodisk
• Unveiling the three-dimensional spin texture of skyrmion tubes
• Direct visualization of three-dimensional shape of skyrmion strings in a noncentrosymmetric magnet
• Current-Induced Helicity Reversal of a Single Skyrmionic Bubble Chain in a Nanostructured Frustrated Magnet
• Manipulating Spin Chirality of Magnetic Skyrmion Bubbles by In-Plane Re-versed Magnetic Fields in (Mn${}_{1-x}$Ni${}_x$)${}_{65}$Ga${}_{35}$ ($x=0.45$) magnet
• Two types of magnetic bubbles in MnNiGa observed via Lorentz microscopy

Cited by in corpus (4)

• Room-temperature sub-100 nm Néel-type skyrmions in non-stoichiometric van der Waals ferromagnet $\mathrm{F}{\mathrm{e}}_{3-\mathrm{x}}\mathrm{GaT}{\mathrm{e}}_2$ with ultrafast laser writability
• Visualizing thickness-dependent magnetic textures in few-layer ${\text{Cr}}_2{\text{Ge}}_2{\text{Te}}_6$
• Spin order dependent skyrmion stabilization in MnFeCoGe hexagonal magnets
• Fresnel Magnetic Imaging of Ultrasmall Skyrmion Lattices