NDLI: Electrocaloric properties in relaxor ferroelectric (1−x)Pb(Mg1/3Nb2/3)O3

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Electrocaloric properties in relaxor ferroelectric (1−x)Pb(Mg1/3Nb2/3)O3–xPbTiO3 system

Content Provider	Semantic Scholar
Author	Peräntie, Jani Tailor, Hamel Hagberg, Juha Jantunen, Heli Ye, Zuo-Guang
Copyright Year	2013
Abstract	The electrocaloric effect (ECE) in the Pb(Mg1/3Nb2/3)O3–PbTiO3 (PMN-PT) solid solution system was investigated by means of detailed direct temperature measurements as a function of temperature, composition, and electric field. The (1−x)PMN-xPT ceramics of compositions 0 ≤ x ≤ 0.3 were fabricated by the columbite route. In opposite to conventional ferroelectrics, the maximum of electrocaloric effect was found to shift from the proximity of depolarization/Curie temperature to higher temperatures above a certain composition-dependent electric field strengths. Especially, the compositions with low PT content showed a broadened temperature range of electrocaloric effect. With increasing PbTiO3 concentration, the magnitude of ΔT increased, and the temperature dependence of the maximum ECE response gradually developed towards a more pronounced anomaly typical for conventional ferroelectrics. The arising high temperature electrocaloric effect in the ergodic relaxor phase was attributed to the contribution from po...
Starting Page	174105
Ending Page	174105
Page Count	1
File Format	PDF HTM / HTML
DOI	10.1063/1.4829012
Volume Number	114
Alternate Webpage(s)	http://jultika.oulu.fi/files/nbnfi-fe201708168135.pdf
Alternate Webpage(s)	https://doi.org/10.1063/1.4829012
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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