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dc.contributor.authorChukka, Ramien
dc.contributor.authorCheah, Jun Weien
dc.contributor.authorChen, Zuhuangen
dc.contributor.authorYang, P.en
dc.contributor.authorShannigrahi, S.en
dc.contributor.authorWang, Junlingen
dc.contributor.authorChen, Langen
dc.identifier.citationChukka, R., Cheah, J. W., Chen, Z., Yang, P., Shannigrahi, S., Wang, J., et al. (2011). Enhanced cooling capacities of ferroelectric materials at morphotropic phase boundaries. Applied physics letters, 98(24), 242902-.en
dc.description.abstractThe electrocaloric properties of PbZr0.52Ti0.48O3(PZT) epitaxial films and 0.7Pb(Mg1/3Nb2/3)O3-0.3PbTiO3 (0.7PMN-0.3PT) single crystals are measured and demonstrated enhanced low temperature refrigeration at morphotropic phase boundary compositions. The results reveal large adiabatic cooling figures in ~260nm PZT films (11 K in 15 V) and 200μm thick 0.7PMN-0.3PT single crystals (2.7 K in 240 V) at Curie transition temperatures and secondary cooling peaks at lower temperatures, near critical points. This is a very useful aspect of ferroelectric cooling elements to attain effective cooling over wide range of working temperatures in solid-state devices.en
dc.relation.ispartofseriesApplied physics lettersen
dc.rights© 2011 American Institute of Physics. This paper was published in Applied Physics Letters and is made available as an electronic reprint (preprint) with permission of American Institute of Physics. The paper can be found at the following official DOI: [].  One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.en
dc.titleEnhanced cooling capacities of ferroelectric materials at morphotropic phase boundariesen
dc.typeJournal Articleen
dc.contributor.schoolSchool of Materials Science & Engineeringen
dc.description.versionPublished versionen
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