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Hardening of the ferroelectric soft mode in thin films
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10.1063/1.2991442
/content/aip/journal/apl/93/13/10.1063/1.2991442
http://aip.metastore.ingenta.com/content/aip/journal/apl/93/13/10.1063/1.2991442

Figures

Image of FIG. 1.
FIG. 1.

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.

Image of FIG. 2.
FIG. 2.

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).

Image of FIG. 3.
FIG. 3.

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).

Tables

Generic image for table
Table I.

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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/content/aip/journal/apl/93/13/10.1063/1.2991442
2008-09-30
2014-04-20
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Hardening of the ferroelectric soft mode in SrTiO3 thin films
http://aip.metastore.ingenta.com/content/aip/journal/apl/93/13/10.1063/1.2991442
10.1063/1.2991442
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