Ultrafast dynamics of moments in bulk ferromagnets
arXiv:2502.07375 · doi:10.1103/7dvv-zkhv
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.
arXiv commentmain: 20 pages, 3 figures. Supplemental: 3 pages, 2 figures
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