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This lecture by the instructor covers the in-situ Lorentz force imaging of femtosecond pump-induced dynamics in Cu20SeO3. The main results include the efficiency of skyrmion generation, microscopic models for transitions, and the growth of skyrmion domains. The lecture also discusses the fluence and thickness dependence, fast field cooling concept, zero field generation, and spontaneous growth of skyrmion domains. Additionally, a microscopic model for different transitions is presented, along with the efficiency of absorption for skyrmion generation using ellipsometry data. The lecture concludes with insights on the stability and metastability of skyrmionic states in chiral magnets.
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