We have grown single crystals of multiferroic double-perovskite Lu 2 CoMnO 6 and studied
the directional dependence of their magnetic and dielectric properties. The ferromagnetic
order emerges below TC≈ 48 K along the crystallographic c axis. Dielectric anomaly arises
along the b axis at TC, contrary to the polycrystalline work suggesting ferroelectricity along
the c axis. Through the strongly coupled ferromagnetic and dielectric states, the highly non-
linear variation of both dielectric constant and magnetization was achieved in application of …