SpinW

Status

Verified

Links

Docs, DOI, Github

Languages

Matlab, Python, Rust

Spin Hamiltonian

\[\mathcal{H} = \mu_B H \sum_i g_i \mathbf{S}_i + \sum_i \mathbf{S}_i A_i \mathbf{S}_i + \sum_{i \neq j} \mathbf{S}_i J_{ij} \mathbf{S}_j + \sum_{i \neq j} B (\mathbf{S}_i \cdot \mathbf{S}_j)^2\]

where first term is a Zeeman interaction, second is a single-ion anisotropy, third is a bilinear interaction and fourth is a biquadratic interaction.

Convention

Spin normalized

no

Multiple counting

no