Dielectric and pyroelectric properties of the morphotropic phase boundary lead barium niobate (PBN) single crystals at low temperature (10-300 K)

R. Guo, A. S. Bhalla, Clive A. Randall, L. E. Cross

Research output: Contribution to journalArticle

52 Scopus citations

Abstract

Low-temperature (10-300 K) dielectric and pyroelectric properties of morphotropic-phase-boundary lead-barium-niobate tungsten-bronze ferroelectric single crystals have been investigated. Strong]] Debye-like" dielectric dispersion, along a nonpolar direction (perpendicular to the polarization direction), has been observed and characterized by dielectric spectrum techniques. A direct charge measurement method has been used to study the low-temperature pyroelectric properties in polar and nonpolar directions. A]] frozen-in" polarization component in a nonpolar direction is also reported. The low-temperature relaxation effects are explained by the internal reorientation polarization perturbation and a thermally agitated local dipole fluctuation model.

Original languageEnglish (US)
Pages (from-to)6405-6410
Number of pages6
JournalJournal of Applied Physics
Volume67
Issue number10
DOIs
StatePublished - Dec 1 1990

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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