Fig. 5: Local control of voltage-driven antipolar-to-ferroelectric phase transition.
From: Reversible control over the distribution of chemical inhomogeneities in multiferroic BiFeO3
a Topography of a stressed region before and after the subsequent electric-field cycling starting with −6 V and +6 V local electric pulses. The poled location starting with negative and positive voltage polarities are indicated by white circles and squares, respectively. b, c Representative PFM phase switching spectroscopy loops of the pristine ferroelectric region (b) and stressed-induced antipolar region (c). Upward- and downward-oriented polarization states are noted as P⨀ and P⨂, respectively.
