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Figure 1

From: Electrical and mechanical switching of ferroelectric polarization in the 70 nm BiFeO3 film

Figure 1

The domain structure of BiFeO3 film.

(a) The sketch of eight possible polarization orientations in a BiFeO3 crystal cell; (b) the surface morphology, (c) out-of-plane (OP) and (d) in-plane (IP) phase images of the 6 V polarized regions; (e) the OP and (f ) IP phase images of the same region observed with a 90o-rotated tip, where the [1 0 0] and [0 1 0] are crystal orientations, some domains with P1, P2, P3 and P4 are marked in (d) and (f ), respectively.

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