- Origin of atomic magnetism and magnetic interactions in solids
- Classically there is always a spin wave solution
- Example: ferromagnetic chain
- Quantum mechanically: Equivalence with coupled quantum harmonic oscillators
- Frustration leads to spiral ground state
- Calculation of spin wave dispersion of a single-Q spiral
- Introduction to SpinW
- References
- R. Skomski: Simple models of magnetism
- N. Majlis: The quantum theory of magnetism
- G. Squires: Introduction to the theory of thermal neutron scattering
- S. Toth and B. Lake: Linear spin wave theory for single-Q magnetic structures,
JPCM,
16, 166002 (2015), ArXiv:1402.6069