The Spin-1/2 Ising Model on the Bow-Tie Lattice as an Exactly Soluble Free-Fermion Model

J. Strev ka, L. Čanová
2008 Acta Physica Polonica. A  
The spin-1/2 Ising model on the bow-tie lattice is exactly solved by establishing a precise mapping relationship with its corresponding free-fermion eight-vertex model. Ground-state and finite-temperature phase diagrams are obtained for the anisotropic bow-tie lattice with three different exchange interactions along three different spatial directions.
doi:10.12693/aphyspola.113.457 fatcat:qm3b5mgpefhktcmrrvqavq5tba