Tutorials

In this section, we provide hands-on examples of how to use Magnon. The tutorials cover:

• Tutorial 1 - a basic working example of a 1D ferromagnetic chain. Introduces the ASE Atoms, Magnon InteractionList and Magnon MagnonSpectrum classes.

• Tutorial 2 - demonstrates the symmetrization routine available to generate fully-symmetrized interaction data under the unit cell symmetry operations.

• Tutorial 3 - demonstrates building primitive cells and using SeeK-path to choose a suitable path in reciprocal space

• Tutorial 4 - uses input files rather than building a structure and its interactions by hand

• Tutorial #1: The Basics
  • Importing the package
  • Setting up the cell
  • Defining the interactions
  • Choosing the path
  • Plotting the bandstructure
  • Full script
• Tutorial #2: Symmetrization
  • Setting up
  • Interactions from symmetry #1
  • Interactions from symmetry #2
  • Interactions from symmetry #3
  • The Symmetrization Procedure
  • Bond reversal symmetry and symmetry operations
  • Full script
• Tutorial #3: Primitivization and Paths
  • Initialize
  • Structure and Coupling
  • Primitivization
  • Paths in Reciprocal Space
  • Full script
  • Result
  • Spurious Folded Bands
• Tutorial #4: File Reading and Antiferromagnets
  • Initialize
  • Structure Inputs
  • Exchange coupling inputs
  • Reading in a single line
  • Getting the bandstructure
  • Extracting the bandstructure data
  • Full script