Magnetoelectric coupling in noncollinear ferrimagnets

摘要

The analytical expressions for the energy coupling of exchange coupled spins with electric ?eld, induced by odd crystal ?eld has been derived in the third order perturbation theory, combining the action of electric ?eld, spin-orbit and exchange interactions. The magnetoelectric coupling due to the partial replacement of the Cu2+ positions by Li+ in LiCuVO4 has been discussed.