Uppsala Atomistic Spin Dynamics
Welcome to the homepage for the Uppsala Atomistic Spin Dynamics (UppASD) project, developed by the Division of Materials Theory at Uppsala University.
The UppASD project is funded by a grant from the European Research Council (ERC) via the Senior Researchers Grant of 2009. Other funding organizations include the Swedish Research Council and the Knut and Alice Wallenberg Foundation
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
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.