Investigation of the electrocaloric effect in a PbMg2/3Nb1/3O3-PbTiO3 relaxor thin film

Correia, T. M.; Young, J. S.; Whatmore, Roger W.; Scott, J. F.; Mathur, N. D.; Zhang, Qi

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dc.contributor.author	Correia, T. M.
dc.contributor.author	Young, J. S.
dc.contributor.author	Whatmore, Roger W.
dc.contributor.author	Scott, J. F.
dc.contributor.author	Mathur, N. D.
dc.contributor.author	Zhang, Qi
dc.date.accessioned	2010-05-06T09:20:30Z
dc.date.available	2010-05-06T09:20:30Z
dc.date.issued	2009-05
dc.identifier.citation	T. M. Correia, J. S. Young, R. W. Whatmore, J. F. Scott, N. D. Mathur, and Q. Zhang, Investigation of the electrocaloric effect in a PbMg2/3Nb1/3O3-PbTiO3 relaxor thin film, Applied Physics Letters, 2009, Volume 95, Issue 18, Pages 1829041-1829043	en_UK
dc.identifier.issn	0003-6951
dc.identifier.uri	https://doi.org/10.1063/1.3257695
dc.identifier.uri	http://hdl.handle.net/1826/4408
dc.description.abstract	Permittivity measurements of a 0.93PMN-0.07PT thin film show a broad maximum near 35 °C, and an anomaly at the depolarizing temperature Td = 18 °C on heating only, suggesting a dipolar glass-relaxor phase transition. No structural phase transition at 18 °C is apparent from ferroelectric hysteresis loops taken on field cooling and field heating. These loops show the thermal hysteresis expected for ferroelectric relaxors, which has not hitherto been experimentally verified in PbMg2/3Nb1/3O3-PbTiO3 thin films. Our data suggest the intriguing possibility of a giant electrocaloric effect (ΔT = 9 K, ΔE = 720 kV cm−1) at and near room temperature.	en_UK
dc.language.iso	en	en_UK
dc.publisher	American Institute of Physics	en_UK
dc.title	Investigation of the electrocaloric effect in a PbMg2/3Nb1/3O3-PbTiO3 relaxor thin film	en_UK
dc.type	Article	en_UK