UppASD

Uppsala Atomistic Spin Dynamics software

The UppASD software package is a simulation suite to study magnetization dynamics by means of the atomistic version of the Landau-Lifshitz-Gilbert (LLG) equation.

Applications:

• Critical temperature determination
• Magnon spectra simulations
• Micromagnetic exchange and DMI stiffness calculations
• Current, field, and temperature-driven dynamics

Features:

• LLG, Metropolis, and Heat-bath algorithms
• Generalized Hamiltonian including
  • bilinear and biquadratic Heisenberg exchange
  • Dzyaloshinskii-Moriya exchange
  • magnetocrystalline anisotropies.
• Support for arbitrary crystal structures and random alloys
• Spin-transfer and spin-orbit torques
• Temperature gradients
• Quantum statistics

Detailed information about the method can be found in
Atomistic Spin Dynamics: Foundations and Applications
O. Eriksson et. al, Oxford University Press 2017

Quick-start:

./setup_UppASD.sh   
make <profile>

Where <profile> is a suitable compiler profile, i.e. ifort, gfortran, gfortran-osx and so on.

The binary is compiled as ./source/sd

Examples are provided in ./examples_revision_controlled/

The manual is found at ./docs/UppASDmanual.pdf

A GUI for VTK-based visualization of output data is available at ./ASD_Viz/ASD_Visualizer.py

(C) 2008-2018 UppASD group