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Giant electrocaloric effect in the thin film relaxor ferroelectric near room temperature
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10.1063/1.2405889
/content/aip/journal/apl/89/24/10.1063/1.2405889
http://aip.metastore.ingenta.com/content/aip/journal/apl/89/24/10.1063/1.2405889
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Electrical measurements of thin films. Polarization vs applied electric field at showing evidence of ferroelectricity in the temperature range studied (from ). Upper inset: the real part of the effective dielectric constant measured at shows a single broad peak at the bulk transition temperature . Loss tangent at . Lower inset: leakage current measurements at the peak working temperature .

Image of FIG. 2.
FIG. 2.

Electrocaloric temperature changes. was calculated from Eq. (1) with applied field . The peak value of occurs at . Inset: the temperature dependence of polarization at selected . Data extracted for from the upper branches of 26 hysteresis loops measured at in . The EC effect is largest when is maximized at the broad paraelectric to ferroelectric transition. The lines represent sixth order polynomial fits to the data.

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/content/aip/journal/apl/89/24/10.1063/1.2405889
2006-12-13
2014-04-17
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Giant electrocaloric effect in the thin film relaxor ferroelectric 0.9PbMg1∕3Nb2∕3O3–0.1PbTiO3 near room temperature
http://aip.metastore.ingenta.com/content/aip/journal/apl/89/24/10.1063/1.2405889
10.1063/1.2405889
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