Fig. 2: In-situ nanomechanical testing.
a Sequential SEM images of the tensile test of the twisted BTO/CFO (scale bar: 10 µm). b Non-linear force-displacement curve measured during tensile loading and unloading. c Edissipation as a function of the deformation (stretching) length. Inset images show the strain evolution during stretching, estimated by a finite-element method structural analysis. Edissipation increases exponentially as the twisted architecture is more strained. d Magnified force-displacement curves showing the degradation over the repetitions. e Edissipation change over the tensile cycling tests. Edissipation degraded over iteration and recovered under electron beam irradiation. Recovered state was maintained under continuous irradiation.
