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Dielectric dispersions of STO film on MgO and STO film on LSAT. Annealing procedures A and B is described in the text. Note that the detection bandwidth is limited by the absorption of the substrates, namely, for MgO and for LSAT.
Temperature dependence of the soft-mode frequency of STO film on MgO and film on LSAT. The soft-mode frequency of the bulk crystal obtained from the reference is also plotted (see Ref. 15).
AFM image of (a) as-deposited STO film on MgO, (b) the postannealed B of (a), (c) as-deposited STO film on LSAT, and (d) the postannealed B of (c).
Summary of the soft-mode frequency , damping constant at , surface characteristic of the AFM image, and out-of-plane lattice constant estimated from x-ray diffraction measurement. indicate the peak width of the x-ray diffraction patterns.
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