Final Report Summary - ASD (Atomistic Spin-Dynamics; Methodology and Applications) As the advancement in technology offers new possibilities to perform experimental studies at decreasing length scales and time scales, the importance of the dynamical response of individual atomic spins becomes more and more important. An atomistic spin dynamics method, where the time evolution of atomic spins are studied theoretically by solving the Landau-Lifshitz-Gilbert (LLG) equations, has been developed and have been successfully applied to a number of interesting cases. The method has been implemented in a computer code, named UppASD as in Uppsala Atomistic Spin Dynamics, which is available to research groups globally. The code is in active development and has recently been parallelized efficiently resulting in that the code can now treat systems containing up to billion of atomic moments. By combining the spin dynamics simulations with ab-inito calculations based on density functional theory, it is now possible to obtain reliable spin models without a priori knowledge of the magnetic properties of the systems studied.
