Deformation-Assisted Skyrmion Formation and Reorganization under Pulsed Currents
Published in ACS Nano, 2026
Topological skyrmions can be driven by ultralow electric currents, attracting significant interest for nonvolatile magnetic memory and spintronic devices. However, how electrical current reshapes skyrmions and reorganizes their collective order remains much less explored, despite its importance for geometry-controlled emergent phenomena and functionality. Here, electric-current pulses drive the deformation of oriented helical stripes in the room-temperature chiral magnet Co8Zn10Mn2, producing elongated and comet-like skyrmionic intermediates before a skyrmion lattice forms. Successive pulses further deform, displace, and reorganize skyrmion clusters into a reordered assembly. Micromagnetic simulations reproduce the intermediate morphologies and deformation pathways, linking pinning-mediated deformation to skyrmion formation and collective reorganization.
Recommended citation: G. Han, W. Zhao, S. Fan, L. Gao, Q. Luo, S. Lu, X. Tian, J. Yang, Y. Hou, and L. Peng. Deformation-Assisted Skyrmion Formation and Reorganization under Pulsed Currents. ACS Nano 20 (25), 18306-18314 (2026). https://doi.org/10.1021/acsnano.6c04118.
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