Figure 2: Calculated free energy density profiles for the respective structural phase variants of the BFO film. | Scientific Reports

Figure 2: Calculated free energy density profiles for the respective structural phase variants of the BFO film.

From: Structural and electronic transformation pathways in morphotropic BiFeO3

Figure 2

(a) Energy barrier between T and −T phase, as well as R and −R phase under zero electric field. (b) The evolution of R phase under [001] electric field. In (a), numbers 1–6 and arrows indicate likely sequence of phase transformations (as experimentally observed in Fig. 1) under an applied external electric-field loading cycle.

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