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Electrocaloric properties of epitaxial strontium titanate films
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10.1063/1.4721668
/content/aip/journal/apl/100/22/10.1063/1.4721668
http://aip.metastore.ingenta.com/content/aip/journal/apl/100/22/10.1063/1.4721668
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Misfit strain vs. temperature phase diagram of epitaxial monodomain (001) SrTiO3 films. The order parameters of the phases appearing in this map are HT: P 1 = P 2 = P 3 = 0, q 1 = q 2 = q 3 = 0; ST: P 1 = P 2 = P 3 = 0, q 1 = q 2 = 0, q 3 ≠ 0; FTI: P 1 = P 2 = 0, P 3 ≠ 0, q 1 = q 2 = q 3 = 0; FTII: P 1 = P 2 = 0, P 3 ≠ 0, q 1 = q 2 = 0, q 3 ≠ 0; FOI: |P 1| = |P 2| ≠ 0, P 3 = 0, q 1 = q 2 = q 3 = 0.

Image of FIG. 2.
FIG. 2.

(a) The adiabatic temperature change ΔT of an epitaxial (001) SrTiO3 film in a MIM configuration as a function of um and T for Ea  = 50 kV/cm and ΔE = 120 kV/cm; (b) the out-of plane polarization P 3 as a function of temperature at um  = −0.02 for Ea  = 0 kV/cm and Ea  = 50 kV/cm.

Image of FIG. 3.
FIG. 3.

The room-temperature adiabatic temperature change ΔT of epitaxial (001) SrTiO3 films with MIM (um  = −0.020, open squares) and [100]/[010] and [110] IDE configurations (um  = 0.015, open circles and triangles, respectively) as a function of ΔE for Ea  = 50 kV/cm.

Image of FIG. 4.
FIG. 4.

The adiabatic temperature change ΔT of an epitaxial (001) SrTiO3 film in a [100] IDE configuration as a function of um and T for Ea  = 50 kV/cm and ΔE = 120 kV/cm.

Image of FIG. 5.
FIG. 5.

The adiabatic temperature change ΔT of an epitaxial (001) SrTiO3 film in a [110] IDE configuration as a function of um and T for Ea  = 50 kV/cm and ΔE = 120 kV/cm.

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/content/aip/journal/apl/100/22/10.1063/1.4721668
2012-06-01
2014-04-19
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Electrocaloric properties of epitaxial strontium titanate films
http://aip.metastore.ingenta.com/content/aip/journal/apl/100/22/10.1063/1.4721668
10.1063/1.4721668
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