Properties of morphotropic phase boundary lead barium niobate (pbn) compositions

R. Guo; A. S. Bhalla; Clive A. Randall; Z. P. Chang; L. E. Cross

doi:10.1080/00150198908017346

Properties of morphotropic phase boundary lead barium niobate (pbn) compositions

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

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24 Scopus citations

Abstract

Investigations of the polarization mechanisms in tungsten bronze ferroelectric, Pb_1-xBa_xNb₂O₆, in particular of the morphotropic phase boundary compositions, have been carried out for both ceramics and bulk crystals by means of electrical, optical, and electron microscopic methods. It is demonstrated by optical conoscopic interference figure that electric field can switch the crystal from one ferroelectric phase to the other for compositions close to the morphotropic phase boundary. A TEM study in the temperature range from — 180°C to room temperature revealed the presence of ferroelectric domains and discommensurate structures associated with octahedral rotations in the PBN crystals and ceramics. In the light of above observed experimental data, the polarization mechanisms of the morphotropic phase boundary compositions are discussed.

Original language	English (US)
Pages (from-to)	193-201
Number of pages	9
Journal	Ferroelectrics
Volume	93
Issue number	1
DOIs	https://doi.org/10.1080/00150198908017346
State	Published - May 1 1989

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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title = "Properties of morphotropic phase boundary lead barium niobate (pbn) compositions",

abstract = "Investigations of the polarization mechanisms in tungsten bronze ferroelectric, Pb1-xBaxNb2O6, in particular of the morphotropic phase boundary compositions, have been carried out for both ceramics and bulk crystals by means of electrical, optical, and electron microscopic methods. It is demonstrated by optical conoscopic interference figure that electric field can switch the crystal from one ferroelectric phase to the other for compositions close to the morphotropic phase boundary. A TEM study in the temperature range from — 180°C to room temperature revealed the presence of ferroelectric domains and discommensurate structures associated with octahedral rotations in the PBN crystals and ceramics. In the light of above observed experimental data, the polarization mechanisms of the morphotropic phase boundary compositions are discussed.",

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year = "1989",

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T1 - Properties of morphotropic phase boundary lead barium niobate (pbn) compositions

AU - Guo, R.

AU - Bhalla, A. S.

AU - Randall, Clive A.

AU - Chang, Z. P.

AU - Cross, L. E.

PY - 1989/5/1

Y1 - 1989/5/1

N2 - Investigations of the polarization mechanisms in tungsten bronze ferroelectric, Pb1-xBaxNb2O6, in particular of the morphotropic phase boundary compositions, have been carried out for both ceramics and bulk crystals by means of electrical, optical, and electron microscopic methods. It is demonstrated by optical conoscopic interference figure that electric field can switch the crystal from one ferroelectric phase to the other for compositions close to the morphotropic phase boundary. A TEM study in the temperature range from — 180°C to room temperature revealed the presence of ferroelectric domains and discommensurate structures associated with octahedral rotations in the PBN crystals and ceramics. In the light of above observed experimental data, the polarization mechanisms of the morphotropic phase boundary compositions are discussed.

AB - Investigations of the polarization mechanisms in tungsten bronze ferroelectric, Pb1-xBaxNb2O6, in particular of the morphotropic phase boundary compositions, have been carried out for both ceramics and bulk crystals by means of electrical, optical, and electron microscopic methods. It is demonstrated by optical conoscopic interference figure that electric field can switch the crystal from one ferroelectric phase to the other for compositions close to the morphotropic phase boundary. A TEM study in the temperature range from — 180°C to room temperature revealed the presence of ferroelectric domains and discommensurate structures associated with octahedral rotations in the PBN crystals and ceramics. In the light of above observed experimental data, the polarization mechanisms of the morphotropic phase boundary compositions are discussed.

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Properties of morphotropic phase boundary lead barium niobate (pbn) compositions

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