Broadband dielectric spectra in PbMg1/3Nb2/3O3 crystals with chemical order modified by la doping

  • D. Jablonskas
  • , R. Grigalaitis
  • , J. Banys
  • , A. A. Bokov
  • , Z. G. Ye

Research output: Contribution to journalArticlepeer-review

17 Scopus citations

Abstract

PbMg1/3Nb2/3O3 (PMN) is a well known ferroelectric relaxor. PMN crystal doped with La3+ has greatly enlarged chemically ordered regions (CORs) in the structure. It is interesting to know how the development of CORs influences physical properties of PMN crystal. In this work, dielectric properties and distribution of relaxation times of PMN and 0.98Pb(Mg1/3Nb2/3)O3-0.02La(Mg2/3Nb1/3)O3 (PLMN) crystals are studied. The experiment was performed in 120-500 K temperature range and wide frequency range - up to 46 GHz. The results demonstrate that the relaxor behaviour of PMN and PLMN is qualitatively the same in spite of the fact that chemical ordering is very different.

Original languageEnglish
Article number142905
JournalApplied Physics Letters
Volume107
Issue number14
DOIs
StatePublished - 5 Oct 2015
Externally publishedYes

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