Synchrotron white-beam X-ray topography of ferroelectric domains in a BaTiO<sub>3</sub>single crystal

The present paper reviews models of domain structure in ferroelectric crystals, thin films and bulk materials. Common crystal structures in ferroelectric materials are described and the theory of compatible domain patterns is introduced. Applications to multi-rank laminates are presented. Alternative models employing phase-field and related techniques are reviewed. The paper then presents methods of observing ferroelectric domain structure, including optical, polarized light, scanning electron microscopy, X-ray and neutron diffraction, atomic force microscopy and piezo-force microscopy. Use of more than one technique for unambiguous identification of the domain structure is also described.

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“…Park et al . [ 124 ] carried out white beam X-ray topography of barium titanate single crystals to observe the domains and strain fields.…”

Section: Observation Of Domain Structure In Ferroelectric Crystalsmentioning

confidence: 99%

A Review of Domain Modelling and Domain Imaging Techniques in Ferroelectric Crystals

2011

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“…This method was used by Niizeki and Hasegawa [5] to observe antiparallel 180 • domains in Barium Titanate single crystals. Park et al [6] carried out white beam X-ray topography of barium titanate single crystals to observe the domains and strain fields. Antiparallel ferroelectric domains in photorefractive barium titanate single crystals were also observed by Fogarty et al using high resolution X-ray diffraction imaging with monochromatic light [7].…”

Section: Synchrotron X-ray Reflection Topographymentioning

confidence: 99%

Synchrotron Mapping of Laminate Microstructures in Barium Titanate Single Crystals

Potnis¹,

Huber²,

Sutter

2011

Ferroelectrics

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“…Lang's method was used by Caslavsky and Polcarova 6 for observing 90° domain walls in Barium Titanate single crystal and it was shown that imaging the entire crystal surface is possible using X-ray diffraction techniques. Park et al 7 carried out white beam X-ray topography of barium titanate single crystals to observe the domains and strain fields. Antiparallel ferroelectric domains in photorefractive barium titanate single crystals were also observed by Fogarty et al using high resolution X-ray diffraction imaging with monochromatic light 8 .…”

Section: Synchrotron X-ray Reflection Topographymentioning

confidence: 99%

Mapping of domain structure in Barium Titanate single crystals by synchrotron x-ray topography

et al. 2010

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Imaging of domains is a key step in understanding the microstructure and hence the properties of ferroelectric single crystals. This understanding is essential for exploiting engineered domain configurations to achieve enhanced performance. In this paper, single crystals of Barium Titanate are observed by reflection topography using unfocussed monochromatic synchrotron X-ray light. A 10 x 10 mm polished surface of an unpoled crystal was mapped to form a composite image, indicating a fine structure of a-and c-domains. By making use of the angular separation of the diffracted reflections and specimen rocking, the relative tilts between adjacent domains about two orthogonal axes were found. Angular resolution better than 0.1mrad in tilt measurements allowed the local elastic curvature of lattice planes to be observed. The resulting composite images show well defined boundaries between regions of distinct microstructure, and give an indication of the proportion of the domain types present. Over large regions of the crystal the domain structure was finer than the X-ray camera resolution of 6.5μm; AFM and SEM imaging of domains was then used to confirm the typical domain spacing. The results are interpreted in the context of models of compatible microstructure in tetragonal crystals using microscopy of etched crystals to assist the interpretation. The technique shows promise for mapping fine microstructure in single crystals, through the use of high resolution X-ray cameras, and is successful in revealing lattice orientation information that is not normally available in optical or AFM measurements.

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Synchrotron white-beam X-ray topography of ferroelectric domains in a BaTiO₃single crystal

Cited by 35 publications

References 13 publications

A Review of Domain Modelling and Domain Imaging Techniques in Ferroelectric Crystals

A Review of Domain Modelling and Domain Imaging Techniques in Ferroelectric Crystals

Synchrotron Mapping of Laminate Microstructures in Barium Titanate Single Crystals

Mapping of domain structure in Barium Titanate single crystals by synchrotron x-ray topography

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Synchrotron white-beam X-ray topography of ferroelectric domains in a BaTiO3single crystal

Cited by 35 publications

References 13 publications

A Review of Domain Modelling and Domain Imaging Techniques in Ferroelectric Crystals

A Review of Domain Modelling and Domain Imaging Techniques in Ferroelectric Crystals

Synchrotron Mapping of Laminate Microstructures in Barium Titanate Single Crystals

Mapping of domain structure in Barium Titanate single crystals by synchrotron x-ray topography

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Product

Resources

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Synchrotron white-beam X-ray topography of ferroelectric domains in a BaTiO₃single crystal