What is UppASD?

The UppASD package is a simulation tool for atomistic spin dynamics at finite temperatures. The program evolves in time the equations of motion for atomic magnetic moments in a solid. The equations take the form of the Landau-Lifshitz-Gilbert (LLG) equation. For most of the applications done so far, the magnetic exchange parameters of a classical Heisenberg Hamiltonian have been used in ASD simulations. The parameters are extracted from ab-initio DFT codes.
Projects using UppASD

Download

The UppASD code is available for download at github.com/UppASD/UppASD

For an overview of the Atomistic Spin Dynamics method, we suggest reading the book Atomistic Spin Dynamics – Foundations and Applications

The practical features are also described in our user manual.