Fatigue-less electrocaloric effect in relaxor Pb(Mg1/3Nb2/3)O3 multilayer elements

Lovro Fulanović*, Jurij Koruza, Nikola Novak, Florian Weyland, Barbara Malič, Vid Bobnar

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


A study was made of the electrocaloric (EC) effect's stability in relaxor Pb(Mg1/3Nb2/3)O3 multilayer elements. The sample was subjected to 106 unipolar cycles at an electric field amplitude of 110 kV cm−1. The dielectric and ferroelectric properties of the material change only slightly, while the microstructure does not reveal any detrimental evidence of the cycling. The initially measured EC temperature change of 1.45 K decreases by only 0.01 K upon cycling, exhibiting a fatigue-less behavior. The results justify the choice of relaxor multilayers as the working bodies in EC cooling devices, where the material should withstand numerous electric field cycles with high amplitudes, sometimes exceeding 100 kV cm−1.

Original languageEnglish
Pages (from-to)5105-5108
Number of pages4
JournalJournal of the European Ceramic Society
Issue number15
Publication statusPublished - Dec 2017


  • Electrocaloric
  • Fatigue
  • Multilayer
  • PMN
  • Relaxors

ASJC Scopus subject areas

  • Ceramics and Composites
  • Materials Chemistry


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