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(a) XRD pattern for (111) films for from and for a BFO-Mn (111) sample. (b) RSM around (141) peak for a BFO film. Evolution of hexagonal lattice parameters with (c). Crosses on the right part of the figure correspond to bulk values from literature.
Unpolarized (a) and polarized (b) Raman spectra for 70, 120, and BFO films deposited on STO (111) and for a substrate. Position and amplitude of the bands and position of the bands calculated in Ref. 18 in unpolarized (c) and (d) configurations.
Neutron diffraction around (a) and (b) reflections measured along and , respectively, for a BFO (111) sample, and taken at room temperature. Inset: magnetic hysteresis loop measured at with the magnetic field in the film plane and perpendicular to the film plane for a BFO (111) sample.
OP phase (a) and amplitude (b) and IP phase (c) and amplitude (d) PFM images measured on a BFO (111) film. The image is . (e) Representation of the cantilever and of the polarizations present in (a)–(d); we use the convention of Ref. 27 . Polarization and current hysteresis loops for a BFO-Mn (111) sample measured at at room temperature (f).
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