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Soft mode behavior in thin films: Evidence of ferroelectric and antiferrodistortive phase transitions
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10.1063/1.3271179
/content/aip/journal/apl/95/23/10.1063/1.3271179
http://aip.metastore.ingenta.com/content/aip/journal/apl/95/23/10.1063/1.3271179
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Polarized IR reflectance of (a) 100 nm and (b) 30 nm thick STO/DSO films and (c) polarized IR reflectivity of a bare (110) DSO substrate at the same temperatures. Only the low-frequency part of spectra and high-frequency part of spectra are shown. The fitted phonon mode frequencies at 10 K are marked by arrows.

Image of FIG. 2.
FIG. 2.

(a) Real and (b) imaginary part of the dielectric function (lines) of the 100 nm STO film obtained from fitting the IR reflectance along with the terahertz data (symbols).

Image of FIG. 3.
FIG. 3.

(a) Temperature dependence of the fitted low-frequency (from polarization) and high-frequency (from polarized IR spectra) polar modes in both STO films (open symbols −30 nm, full symbols −100 nm) and (b) temperature dependence of the dielectric function from the MW experiment for both STO films in comparison with the dielectric function in the subterahertz range.

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/content/aip/journal/apl/95/23/10.1063/1.3271179
2009-12-07
2014-04-24
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Soft mode behavior in SrTiO3/DyScO3 thin films: Evidence of ferroelectric and antiferrodistortive phase transitions
http://aip.metastore.ingenta.com/content/aip/journal/apl/95/23/10.1063/1.3271179
10.1063/1.3271179
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