Introduction

Here are some examples to illustrate how this package could be used.

• Square lattice ferromagnet
• Square lattice antiferromagnet
• • Magnon bands by linear spin wave theory
  • Auto-generation of the analytical expression of the Hamiltonian matrix by linear spin wave theory
• Ferromagnetic spin waves in the monolayer CrBr₃
• • Magnon bands and inelastic neutron spectra by linear spin wave theory
  • Berry curvature and Chern number of the magnon bands