Domain Engineering for Enhanced Ferroelectric Properties of Epitaxial (001) BiFeO Thin Films

Jang HW; Ortiz D; Baek SH; Folkman CM; Das RR; Shafer P; Chen Y; Nelson CT; Pan X; Ramesh R; Eom CB

Advanced Materials, Vol.21, No.7, 817-817, 2009

DOI10.1002/adma.200800823 Export Citation

Domain Engineering for Enhanced Ferroelectric Properties of Epitaxial (001) BiFeO Thin Films

Jang HW, Ortiz D, Baek SH, Folkman CM, Das RR, Shafer P, Chen Y, Nelson CT, Pan X, Ramesh R, Eom CB

Two-variant stripe domains in BiFeO3 films on miscut (001) SrTiO3 substrates exhibit squarelike, complete ferroelectric switching with low leakage current. Both the preferential distortion of BiFeO3 unit cells and the persistent step-flow growth induced by the substrate anisotropy are the origins of the formation of the twovariant stripe domains in (001) BiFeO3 films.