EXCHANGE BIAS-LIKE PHENOMENON IN LU DOPED La0.1Bi0.9FeO3 CERAMICS

The polycrystalline La0.1LuxBi0.9-xFeO3(x = 0, 0.01, 0.03, 0.05, 0.1 and 0.2) compounds were synthesized by a conventional solid-state reaction method. An unusual exchange bias-like (EB-like) phenomenon was found in this system. Both horizontal shift (Hs) and vertical shift (Ms) are observed simultaneously. Moreover, the horizontal shift displays a similar trend to the vertical shift with the variation of Lu content and the variation of maximum applied magnetic field, revealing that the horizontal shift and the vertical shift are closely correlated. We propose that the horizontal shift may be related to the exchange interaction between two different canted-AFM phases and the vertical shift is related to the large anisotropy of LuFeO3.