Universality of conductance peak in ferroeletric phase transition: Impurity doped BaTiO3 and (Pb(Zn1/3Nb2/3)O 3)0.92(PbTiO3)0.08 single crystals

Mizuki Yamato, Daisuke Matsumoto, Yousuke Urakami, Yukio Watanabe

Research output: Contribution to journalConference articlepeer-review

4 Citations (Scopus)

Abstract

The temperature (T) dependence of the quasi-equilibrium conductivity (T) of iron-doped, oxygen-reduced, and undoped BaTiO3 single crystals and relaxor (Pb(Zn1 /3Nb2/3)O3)0.92 (PbTiO3)0.08 (PZNT-PT) crystals is measured. We have found that all the -T's exhibit the peaking at Curie temperature as far as the conductance in the paraelectric phase is sufficiently low. The value of the peaks of BaTiO3 single crystals is approx. 1 n- 1cm- 1 and is independent of impurities, whereas of the paraelectric phase depends on impurities. We speculate that the conductance peaking at phase transitions is a general property of ferroelectrics.

Original languageEnglish
Pages (from-to)110-113
Number of pages4
JournalFerroelectrics
Volume346
DOIs
Publication statusPublished - 2007
Event8th Russia/CIS/Baltic/Japan Symposium on Ferroelectricity, RCBJSF-8 - Tsukuba, Japan
Duration: May 15 2006May 19 2006

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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