Journal of Physics, Condensed Matter 2011-08-24

Orthorhombic polar Nd-doped BiFeO3 thin film on MgO substrate.

I N Leontyev, Yu I Yuzyuk, P-E Janolin, M El-Marssi, D Chernyshov, V Dmitriev, Yu I Golovko, V M Mukhortov, B Dkhil

Index: J. Phys. Condens. Matter 23(33) , 332201, (2011)

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Abstract

A Nd-doped BiFeO(3) thin film deposited on MgO substrate was studied by synchrotron diffraction. The ferroelectric nature of the film is proven by in-plane remanent polarization measurement. The highest possible symmetry of the film is determined to be orthorhombic, within the Fm2m space group. Such a structure is rotated by 45° with respect to the substrate and is consistent with tilts of oxygen octahedra doubling the unit cell. This polar structure presents a rather unusual strain-accommodation mechanism.© 2011 IOP Publishing Ltd

Related Compounds

  • Bismuth trioxide

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