Morphotropic phase boundary and pyroelectric properties in Pb(Mg1/2W1/2)O3-PbTiO3 system

Naohiko Yasuda, Hideki Tauchi, Katsuhito Ohki, Kenji Uchino

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Abstract

Aiming to clarify the relaxor vs. normal ferroelectricity relation, structual, dielectric and pyroelectric properties of (1-x)Pb(Mg1/2W1/2)O3(PMW)-xPbTiO 3(PT) solid solution system have been examined as a function of the concentration x. The morphotropic phase boundary between relaxor (pseudocubic) and normal ferroelectric (tetragonal) phases exists at around x = 0.58. The maximum ∼ 15000 (at 100 kHz) of the peak permittivity was observed at x = 0.58. The large spontaneous polarization Ps (= 42 μC/cm2) was obtained at room temperature at x = 0.6. Feasibility of these materials to pyroelectric applications was checked. The effects of poling and dc-biasing field were also examined.

Original languageEnglish (US)
Pages (from-to)S1024-S1027
JournalJournal of the Korean Physical Society
Volume32
Issue number3 SUPPL.
StatePublished - Dec 1 1998

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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