Organic and inorganic relaxor ferroelectrics with giant electrocaloric effect

S. G. Lu, B. Rožič, Q. M. Zhang, Z. Kutnjak, Xinyu Li, E. Furman, Lee J. Gorny, Minren Lin, B. Malič, M. Kosec, R. Blinc, R. Pirc

Research output: Contribution to journalArticlepeer-review

300 Scopus citations


The electrocaloric effect (ECE) in inorganic thin film and organic relaxor ferroelectrics is investigated by directly measuring the ECE around room temperature. The results reveal that giant ECEs can be obtained in the high energy electron irradiated poly(vinylidene fluoride-trifluoroethylene) relaxor copolymer and in the La-doped Pb (ZrTi) O3 relaxor ceramic thin films, which are much larger than that from the normal ferroelectric counterparts. The large ECE observed, compared with normal ferroelectrics, is likely caused by the large number of disordered fluctuating polarization entities in relaxor ferroelectrics which can lead to extra entropy contributions and larger ECE.

Original languageEnglish (US)
Article number162904
JournalApplied Physics Letters
Issue number16
StatePublished - Oct 18 2010

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)


Dive into the research topics of 'Organic and inorganic relaxor ferroelectrics with giant electrocaloric effect'. Together they form a unique fingerprint.

Cite this