A New Class of Room‐Temperature Multiferroic Thin Films with Bismuth‐Based Supercell Structure

• DOI: 10.1002/adma.201203051
• Publication Date: 2012-11-26T10:01:24Z
• Authors: Aiping Chen; Honghui Zhou; Zhenxing Bi; Yuanyuan Zhu; Zhiping Luo; Adrian Bayraktaroglu; Jamie Phillips; Eun‐Mi Choi; Judith L. MacManu...; Stephen J. Pennycook; Jagdish Narayan; Quanxi Jia; Xinghang Zhang; Haiyan Wang
• Keywords: Models, Molecular; Strain Engineering; multiferroics; Multiferroics; 530; 01 natural sciences; Ferrimagnetic Materials; ferrimagnetic materials; Engineering; Electricity; Materials Science and Engineering; Ferroelectric Materials; ferroelectric materials; Engineering (General); Thin Films; Titanium; Temperature; Oxides; Calcium Compounds; 0104 chemical sciences; thin films; strain engineering; Crystallization; Bismuth

Intergrowth of two partially miscible phases of BiFeO(3) and BiMnO(3) gives a new class of room-temperature multiferroic phase, Bi(3) Fe(2) Mn(2) O(10+δ) , which has a unique supercell (SC) structure. The SC heterostructures exhibit simultaneously room-temperature ferrimagnetism and remanent polarization. These results open up a new avenue for exploring room-temperature single-phase multiferroic thin films by controlling the phase mixing of two perovskite BiRO(3) (R = Cr, Mn, Fe, Co, Ni) materials.