"111…-textured Mn-substituted BiFeO 3 thin films on SrRuO 3 /Pt/Ti/SiO 2 /Si structures

(111)-textured 5%-Mn-substituted BiFeO3 (BFMO) thin films were fabricated on (111)-oriented SrRuO3(SRO)∕Pt∕Ti∕SiO2∕Si structures by chemical solution deposition. X-ray diffraction analyses (θ-2θ and pole figures) confirmed that SRO and BFMO films were highly (111) textured. High-resolution x-ray diffraction reciprocal space mapping showed that the crystal structure of the BFMO films was a rhombohedrally distorted perovskite structure. Transmission electron microscopy cross section images revealed that BFMO films were composed of columnar grains epitaxially aligned on the SRO grains. The remanent polarization of approximately 70μC∕cm2 and coercive field of approximately 300kV∕cm were observed at 900kV∕cm applied electric field in the (111)-textured BFMO thin films.

[1]  Hiroshi Funakubo,et al.  Impact of (111)-Oriented SrRuO3/Pt Tailored Electrode for Highly Reproducible Preparation of Metal Organic Chemical Vapour Deposited Pb(Zr,Ti)O3 Films for High Density Ferroelectric Random Access Memory Applications , 2007 .

[2]  C. Ong,et al.  BiFeO3 film deposited on Si substrate buffered with La0.7Sr0.3MnO3 electrode , 2006 .

[3]  Keisuke Sato,et al.  Cr-Doping Effects to Electrical Properties of BiFeO3 Thin Films Formed by Chemical Solution Deposition , 2006 .

[4]  T. Zhao,et al.  Electrical control of antiferromagnetic domains in multiferroic BiFeO3 films at room temperature , 2006, Nature materials.

[5]  H. Ishiwara,et al.  Room temperature ferroelectric properties of Mn-substituted BiFeO3 thin films deposited on Pt electrodes using chemical solution deposition , 2006 .

[6]  H. Ishiwara,et al.  Doping Effect of Rare-Earth Ions on Electrical Properties of BiFeO3 Thin Films Fabricated by Chemical Solution Deposition , 2006 .

[7]  H. Funakubo,et al.  Epitaxial BiFeO3 thin films fabricated by chemical solution deposition , 2006 .

[8]  Y. J. Lee,et al.  Crystal growth and characterizations of highly oriented BiFeO3 thin films , 2005 .

[9]  H. Funakubo,et al.  “LOCAL EPITAXIAL GROWTH” OF TETRAGONAL (111)-ORIENTED Pb(Zr,Ti)O3 THIN FILM , 2005 .

[10]  Y. J. Lee,et al.  Metalorganic chemical vapor deposition of lead-free ferroelectric BiFeO3 films for memory applications , 2005 .

[11]  H. Ishiwara,et al.  Reduced Leakage Current in BiFeO3 Thin Films on Si Substrates Formed by a Chemical Solution Method , 2005 .

[12]  M. Blamire,et al.  High-resolution x-ray diffraction and transmission electron microscopy of multiferroic BiFeO3 films , 2005 .

[13]  Junling Wang,et al.  Low symmetry phase in (001) BiFeO3 epitaxial constrained thin films , 2005, cond-mat/0501675.

[14]  Junling Wang,et al.  Dramatically enhanced polarization in (001), (101), and (111) BiFeO3 thin films due to epitiaxial-induced transitions , 2004 .

[15]  Minoru Noda,et al.  Giant Ferroelectric Polarization Beyond 150 µC/cm2 in BiFeO3 Thin Film , 2004 .

[16]  R. Ramesh,et al.  Epitaxial BiFeO3 Multiferroic Thin Film Heterostructures , 2003, Science.

[17]  K. H. Andersen,et al.  Crystal structure and spiral magnetic ordering of BiFeO3 doped with manganese , 2002 .

[18]  H. Schmid,et al.  Structure of a ferroelectric and ferroelastic monodomain crystal of the perovskite BiFeO3 , 1990 .

[19]  Robert Gerson,et al.  Dielectric hysteresis in single crystal BiFeO3 , 1970 .