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Here, using time\u2010resolved holography\u2010based x\u2010ray microscopy supported by micromagnetic simulations, we reveal that on nano\u2010 to picosecond timescales the actual dynamics can deviate strikingly from this expectation by producing transient regimes of chaos\u2010like behavior. By exploiting deterministic skyrmion generation at an anisotropy\u2010engineered defect and implementing a high\u2010resolution pump\u2013probe scheme, we directly track the magnetization evolution in real space. This approach uncovers a dynamic phase transition that separates coherent SOT\u2010driven motion from a regime of transient instability characterized by picosecond\u2010scale fluctuations, strong domain disorder, topological instabilities, and skyrmion shedding, experimentally observed here for the first time. During SOT actuation, the system briefly enters this instability regime, showing short\u2010lived chaos\u2010like behavior, yet it reliably relaxes into robust and reproducible final states. Our results demonstrate a powerful methodology for accessing time\u2010averaged nano\u2010 to picosecond dynamics in magnetic systems and reveal a previously hidden layer of transient, topologically rich behavior underlying nominally deterministic skyrmion\u00a0control.<\/jats:p>","DOI":"10.1002\/smll.73778","type":"journal-article","created":{"date-parts":[[2026,5,14]],"date-time":"2026-05-14T10:15:24Z","timestamp":1778753724000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Emergent Chaos\u2010Like Dynamics of Spin\u2013Orbit\u2010Torque\u2010Driven Magnetic Transitions"],"prefix":"10.1002","volume":"22","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-9781-9132","authenticated-orcid":false,"given":"L.\u2010M.","family":"Kern","sequence":"first","affiliation":[{"name":"Max Born Institute for Nonlinear Optics and Short Pulse Spectroscopy Berlin Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6408-2581","authenticated-orcid":false,"given":"K.","family":"Litzius","sequence":"additional","affiliation":[{"name":"Experimental Physics V, Center for Electronic Correlations and Magnetism University of Augsburg Augsburg Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9079-8823","authenticated-orcid":false,"given":"V.","family":"Deinhart","sequence":"additional","affiliation":[{"name":"Helmholtz\u2010Zentrum Berlin f\u00fcr Materialien und Energie Berlin Germany"},{"name":"Ferdinand\u2010Braun\u2010Institut (FBH) Berlin Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9262-4838","authenticated-orcid":false,"given":"M.","family":"Schneider","sequence":"additional","affiliation":[{"name":"Max Born Institute for Nonlinear Optics and Short Pulse Spectroscopy Berlin Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3072-3499","authenticated-orcid":false,"given":"C.","family":"Klose","sequence":"additional","affiliation":[{"name":"Max Born Institute for Nonlinear Optics and Short Pulse Spectroscopy Berlin Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4612-3431","authenticated-orcid":false,"given":"K.","family":"Gerlinger","sequence":"additional","affiliation":[{"name":"Max Born Institute for Nonlinear Optics and Short Pulse Spectroscopy Berlin Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0516-0209","authenticated-orcid":false,"given":"R.","family":"Battistelli","sequence":"additional","affiliation":[{"name":"Helmholtz\u2010Zentrum Berlin f\u00fcr Materialien und Energie Berlin Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0009-2329-1123","authenticated-orcid":false,"given":"D.","family":"Metternich","sequence":"additional","affiliation":[{"name":"Helmholtz\u2010Zentrum Berlin f\u00fcr Materialien und Energie Berlin Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9255-9554","authenticated-orcid":false,"given":"D.","family":"Engel","sequence":"additional","affiliation":[{"name":"Max Born Institute for Nonlinear Optics and Short Pulse Spectroscopy Berlin Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3750-7556","authenticated-orcid":false,"given":"C. 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