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arXiv · 2502.07375

Ultrafast dynamics of moments in bulk ferromagnets

Mouad Fattouhi·Pascal Thibaudeau·Liliana D. Buda-Prejbeanu
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Abstract

A robust and efficient model for investigating the ultrafast dynamics of magnetic materials excited by laser pulses has been created, integrating dynamic Landau-Lifshitz-Bloch equations with a quantum thermostat and a two-temperature model. The model has been successfully applied to three archetypal materials in the literature: nickel, cobalt, and iron. Additionally, analysis of the ultrafast dynamic susceptibility tensor indicates that off-diagonal components display specific features depending on whether a continuous external magnetic field is present.

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Mouad Fattouhi, Pascal Thibaudeau, Liliana D. Buda-Prejbeanu. 2025-02-11. Ultrafast dynamics of moments in bulk ferromagnets. https://doi.org/10.1103/7dvv-zkhv

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