Abstract: A fast control protocol for magnetization dynamics of a submicron ferromagnetic thin film is proposed in this paper. Due to the spin-orbit coupling, the spin-polarized current generated by the external electric field induces the magnetization rotation in the local magnetic moment of the ferromagnetic layer via the s-d exchange coupling. We apply the inverse engineering method, one technique of Shortcuts to Adiabaticity, to flip the magnetization orientation in the submicron ferromagnetic thin film and optimise the intensity of the electric field. We also analyze the control schemes for the ferromagnetic thin film with both isotropic and anisotropic shape. Our proposed protocol is capable to shorten the reversal time of the magnetization vector comparing with the existing methods by one order of magnitude and exhibits better robustness.

Key words: ferromagnetic material, magnetization dynamics, spin-orbit coupling, shortcuts to adiabaticity