Ultrafast magnetization dynamics by electrons and phonons

Electron- and phonon-mediated ultrafast magnetization dynamics of Gd(0001)
Muhammad Sultan, Unai Atxitia, Alexey Melnikov, Oksana Chubykalo-Fesenko, and Uwe Bovensiepen
Phys. Rev. B 85, 184407 (2012)

Schematic diagram of the model. The multispin LLB model (center) is coupled to the 2T model via two
coupling mechanisms: phonon contribution via Raman processes (left) and electron contribution via dynamical spin polarization of carriers which produces a change of chemical potential μ (Ref. 37) (right). The 2T model and the LLB model are time and layer resolved and the electron diffusion is considered. The change in the phonon population with temperature is taken into account within the Debye model. The parameters of the 2T model were taken from Refs. 27
and 29.