8 papers
Sub-20 nm spin textures with arbitrary topological charge stabilized by higher-order interactions
Zhen Sun, Shiwei Zhu, Moritz A. Goerzen +3
Topological magnetization textures play a central role in modern magnetism. For many applications, spin textures with different topological charges in the same system are parti…
Topological spin textures in 2D altermagnetic chromium chalcogenides: Interplay between magnetic frustration and Dzyaloshinskii-Moriya interaction
Zirui Zhang, Shiwei Zhu, Ruixiao Ma +3
Altermagnetism has recently emerged as a distinct magnetic paradigm, yet the exploration of topological spin textures within two-dimensional (2D) altermagnets remains limited. Usin…
Beating micromagnetic limits on skyrmion stability by long-range frustration
Shiwei Zhu, Moritz A. Goerzen, Changsheng Song +1
Skyrmion stability is commonly assumed to scale with skyrmion size or exchange stiffness within micromagnetic models. Here, we demonstrate that long-range exchange frustration can…
Universal two-stage dynamics and phase control in skyrmion formation
Shiwei Zhu, Xinyuan Guan, Zhen Sun +2
We uncover a universal two-stage dynamics during skyrmion formation and establish its connection to equilibrium phases through the introduction of a chiral correlation . Stage I…
Strongly enhanced lifetime of higher-order bimerons and antibimerons
Shiwei Zhu, Moritz A. Goerzen, Changsheng Song +2
Magnetic bimerons, similar to skyrmions, are topologically nontrivial spin textures characterized by topological charge . Most studies so far have focused on low- solitons ($…
Ferroelectricity-Driven Metallicity and Magnetic Skyrmions in van der Waals Cr2Ge2Te6/Hf2Ge2Te6 Multiferroic Heterostructure
Zheng Chen, Hongliang Hu, Wenjun Zhang +3
Two-dimensional (2D) multiferroic heterostructures present a promising platform for advanced spin devices by leveraging the coexisting ferromagnetic (FM) and ferroelectric (FE) ord…
High-topological-number skyrmions and phase transition in two-dimensional frustrated - magnets
Hongliang Hu, Zhong Shen, Zheng Chen +3
With the rapidly expanded field of two-dimensional(2D) magnetic materials, the frustrated magnetic skyrmions are attracting growing interest recently. Here, based on hexagonal clos…
Classification of skyrmionic textures and extraction of Hamiltonian parameters via machine learning
Dushuo Feng, Zhihao Guan, Xiaoping Wu +2
Classifying skyrmionic textures and extracting magnetic Hamiltonian parameters are fundamental and demanding endeavors within the field of two-dimensional (2D) spintronics. By usin…