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Article Dans Une Revue Journal of Magnetism and Magnetic Materials Année : 2022

Light induced ultrafast magnetization dynamics in metallic compounds

Résumé

We review the phenomenology of light-induced ultrafast magnetization dynamics, with emphasis on metallic compounds. The interaction of femtosecond laser pulses with magnetic thin films induces a wide range of out of equilibrium phenomena, leading to an ultrafast demagnetization, and a subsequent magnetization dynamics. The latter can lead to a deterministic reversal of the magnetization or allow for the controlled motion of domain walls. Those light-induced magnetization manipulations have potential application for ultrafast and energy efficient spintronic. The review summarizes experimental results and theoretical approaches on demagnetization and the all-optical helicity-dependent switching of the magnetization, whose underlying mechanism(s) are still heavily debated, even after 25 years of intensive research.
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Dates et versions

hal-03764328 , version 1 (30-08-2022)

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Philippe Scheid, Quentin Remy, Sébastien Lebègue, Grégory Malinowski, Stéphane Mangin. Light induced ultrafast magnetization dynamics in metallic compounds. Journal of Magnetism and Magnetic Materials, 2022, 560, pp.169596. ⟨10.1016/j.jmmm.2022.169596⟩. ⟨hal-03764328⟩
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