Incommensurate phases in lead potassium niobate and lead sodium niobate, homologues of barium sodium niobate.

Constantinos Manolikas; G. Van Tendeloo; S. Amelinckx

doi:10.1016/0038-1098(86)90244-9

Incommensurate phases in lead potassium niobate and lead sodium niobate, homologues of barium sodium niobate.

Constantinos Manolikas, G. Van Tendeloo, S. Amelinckx

Research output › peer-review

Abstract

Electron diffraction and high resolution electron microscopy reveal the presence of incommensurate structures in lead potassium niobate, lead sodium niobate and in mixed crystals. The incommensurability can be described either as being due to the presence of quasi-periodic "diffuse" anti-phase boundaries or as being due to the presence of deformation waves, the deformation mode being shearing of the NbO₆ octahedra. The incommensurability depends on composition as well as on temperature.

Original language	English
Pages (from-to)	845-849
Number of pages	5
Journal	Solid State Communications
Volume	58
Issue number	12
DOIs	https://doi.org/10.1016/0038-1098(86)90244-9
State	Published - Jun 1986

ASJC Scopus subject areas

General Chemistry
Condensed Matter Physics
Materials Chemistry

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10.1016/0038-1098(86)90244-9

Cite this

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title = "Incommensurate phases in lead potassium niobate and lead sodium niobate, homologues of barium sodium niobate.",

abstract = "Electron diffraction and high resolution electron microscopy reveal the presence of incommensurate structures in lead potassium niobate, lead sodium niobate and in mixed crystals. The incommensurability can be described either as being due to the presence of quasi-periodic {"}diffuse{"} anti-phase boundaries or as being due to the presence of deformation waves, the deformation mode being shearing of the NbO6 octahedra. The incommensurability depends on composition as well as on temperature.",

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AU - Amelinckx, S.

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AB - Electron diffraction and high resolution electron microscopy reveal the presence of incommensurate structures in lead potassium niobate, lead sodium niobate and in mixed crystals. The incommensurability can be described either as being due to the presence of quasi-periodic "diffuse" anti-phase boundaries or as being due to the presence of deformation waves, the deformation mode being shearing of the NbO6 octahedra. The incommensurability depends on composition as well as on temperature.

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