Magnetoelectric properties of flexible BiFeO3/Ni tapes

L. YAN; M. ZHUO; Z. WANG; J. YAO; N. HABERKORN; S. ZHANG; L. CIVALE; J. LI; D. VIEHLAND; Q. X. JIA

APPLIED PHYSICS LETTERS

AMER INST PHYSICS

Lugar: New York; Año: 2012 vol. 101 p. 12908 - 12910

0003-6951

We report ferroelectric (FE), ferromagnetic, and magnetoelectric (ME) properties of BiFeO3 films directly deposited on flexible magnetic Ni tapes. Without use of metal-oxide and/or noble metal buffer layer between the BiFeO3 and the Ni, both ferroelectric and magnetic properties of the film and the substrate are preserved. X-ray diffraction and transmission electron microscopy analyses confirm the formation of preferentially oriented (110) BiFeO3 film on Ni tapes. The BiFeO3 film has a saturation polarization and a piezoelectric d33 coefficient of 69 lC/cm2 and 52 pm/V, respectively. The BiFeO3/Ni tape shows a  Magnetoelectric coefficient of 3.5 mV/cmOe