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(a) Theta-2theta XRD pattern of the BFO/Pt/MgO capacitor. Inset: a magnified view of the overlapping region. (b) XRD phi-scan spectra of the -oriented BFO and Pt layers, together with the phi-scan spectrum of the MgO (001) substrate. (c) Symmetric RSM for (002) reflection. (d) Asymmetric RSM for (103) reflection within the reciprocal space of MgO.
(a) hysteresis loop measured at 1 kHz under a triangular bipolar electric field, and (b) hysteresis loop of the BFO/Pt/MgO capacitor measured at 298 K.
Electrical fatigue characteristics of the Au(Ti)/BFO/Pt/MgO capacitor. A switching field of 300 kV/cm and a measuring field of 400 kV/cm were used in the fatigue test. The vertical bar on each data point reflects three independent measurements.
(a) Four distinct pulse sequences employed for measuring the charge retention of , , , and , and (b) the retained charge plotted as a function of the relaxation time of the Au(Ti)/BFO/Pt/MgO capacitor.
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