Department of Physics and Astronomy

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

If you would like to download a copy of UppASD, please contact us and we will reply with a secure link to the download site.

For an overview of the Atomistic Spin Dynamics method, we suggest you refer to the theses Spin Dynamics and Magnetic Multilayers by Björn Skubic and Atomistic Spin Dynamics, Theory and Applications by Johan Hellsvik.

The practical features are also described in our users maunal.
Download the user manual for UppASD