Extended Data Fig. 3: SAED measurements on a one-unit-cell-thick freestanding BFO film. | Nature

Extended Data Fig. 3: SAED measurements on a one-unit-cell-thick freestanding BFO film.

From: Freestanding crystalline oxide perovskites down to the monolayer limit

Extended Data Fig. 3

a, b, SAED measurements on a one-unit-cell-thick freestanding BFO film taken at the same region in a sequence showing clear broadening of the diffraction spots. Scale bars, 2 nm−1. c, The fitted full-width at half-maximum (FWHM) of the diffraction spots (red and green dashed boxes in a and b) show a FWHM of 0.2 nm−1 and 0.39 nm−1, indicating that the real-space crystalline lattice domain size decreases by almost half between these two measurements.

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