Spin-1 effective Hamiltonian with three degenerate orbitals: An application to the case of V${}_2$O${}_3$

S. Di Matteo, N. B. Perkins, C. R. Natoli

Motivated by recent neutron and x-ray observations in V${}_2$O${}_3$, we derive the effective Hamiltonian in the strong coupling limit of an Hubbard model with three degenerate t_{2g}…