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(Color online) XRD patterns of the up- and downgraded BSSnT thin films. The inset is the XRD patterns of four BSSnT ceramic targets with , 0.2, 0.3, and 0.4, respectively.
(Color online) SEM image of the cross section of the downgraded BSSnT thin film.
(Color online) Permittivity as a function of direct current (dc) bias at for BSSnT thin films: (a) upgraded and (b) downgraded.
(Color online) Permittivity as a function of temperature at 1, 10, and for BSSnT thin films. (a) Upgraded and (b) downgraded.
(Color online) Permittivity as a function of temperature at for upgraded BSSnT thin films. A, B, C, and D represent the assumed Gaussian curves for each layer. E is the summation of them. F is the measured curve. The inset shows the permittivity vs temperature characteristic of BSSnT ceramic targets with , 0.2, 0.3, and 0.4 at . The peak temperature of each ceramic target was used as the peak temperature value in the Gaussian distribution of permittivity of each layer.
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