2013/08/01 by V. G. Baryakhtar, V. G. Bar’yakhtar, V. I. Butrim +1 · 1 citation
Materials Science · Physics and Astronomy · #Exchange interaction #Femtosecond #Ferrimagnetism #Magnetic properties of thin films #Magnetism in coordination complexes #Precession #Relaxation (psychology) #Spin (aerodynamics) #Spins #Theoretical and Computational Physics #cond-mat.str-el
paper · pdf · doi:10.1134/s0021364013180057
published as JETP Letters 98, 298 (2013) · 5 pages, 1 figure
arxiv created 2013/08/01 · openalex publication_date 2013/11/01 · arxiv updated 2015/06/16 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
An exact solution for the evolution of the spins of sublattices in a two-sublattice ferrimagnet has been obtained in the exchange approximation. The nonlinear regimes of the spin dynamics including the longitudinal evolution of the spin magnitudes of the sublattices and the spin precession have been found taking into account exchange relaxation. In particular, these regimes describe the switching of the directions of spins observed in GdFeCo alloy under the action of a femtosecond laser pulse.