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Low-temperature phase of
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10.1063/1.1999017
/content/aip/journal/apl/87/3/10.1063/1.1999017
http://aip.metastore.ingenta.com/content/aip/journal/apl/87/3/10.1063/1.1999017
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Temperature dependence of in STO18 measured at a frequency of 30 Hz and using high and low measuring ac signals. The solid line is the fit of the low signal dielectric constant to the SRBRF model using the ferroelectric condition.

Image of FIG. 2.
FIG. 2.

Linear dielectric constant measured at a frequency of 30 Hz in STO16 as a function of the temperature. The solid line is calculated from the SRBRF model using the spherical glass condition. The deviation from the solid line below 55 K is due to the cluster domain-wall contribution (see Fig. 5).

Image of FIG. 3.
FIG. 3.

(a) The real, , imaginary, , and absolute, , values of the nonlinear dielectric constant in STO18 as a function of the temperature. The frequency of the excitation signal was 120 Hz. (b) , calculated from the SRBRF model, using parameters obtained from the fit of (cf. Fig. 1).

Image of FIG. 4.
FIG. 4.

(a) Temperature dependences of , and measured in STO16. The frequency of the excitation signal was 120 Hz. (b) calculated from the SRBRF model, using the same parameters as in the case of (cf. Fig. 2).

Image of FIG. 5.
FIG. 5.

(a) The domain-wall contribution in STO18 as a function of temperature. (b) The contribution of the dynamics of polar clusters, , to the dielectric response below 55 K and the FC-ZFH polarization, , in STO16 as a function of temperature.

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/content/aip/journal/apl/87/3/10.1063/1.1999017
2005-07-13
2014-04-19
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Low-temperature phase of SrTiO3
http://aip.metastore.ingenta.com/content/aip/journal/apl/87/3/10.1063/1.1999017
10.1063/1.1999017
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