Interplay of orbital ordering and exchange interaction in V2O3

Orbital ordering in V2O3 appears due to the orbital degeneracy of the doubl y degenerate ground state of the V3+ ions and causes an antiferromagnetic p hase transition in this compound. Assuming a crystal field of symmetry lowe r than cubic and spin-orbit coupling, the magnetic properties of this compo und have been studied. Correlated effective-field theory is used to study t he magnetic properties of the insulating phase. The magnetic structure obse rved at low temperature is also incorporated in the calculation.