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Quantitative x-ray Bragg diffraction topography of periodically domain-inverted LiNbO3
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UNSPECIFIED (1999) Quantitative x-ray Bragg diffraction topography of periodically domain-inverted LiNbO3. In: 4th Biennial Conference on High Resolution X-ray Diffraction and Topography (XTOP 98), UNIV DURHAM, DURHAM, ENGLAND, SEP 09-11, 1998. Published in: JOURNAL OF PHYSICS D-APPLIED PHYSICS, 32 (10A Sp. Iss. SI). A160-A165. ISSN 0022-3727.
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Abstract
Periodic domain inversion in a ferroelectric material (lithium niobate) has been studied using high-resolution x-ray diffraction topography. A domain-inverted structure of period 30 mu m was fabricated in a LiNbO3 crystal with a thickness of 300 mu m via electric-field poling. The synchrotron-radiation x-ray experiments were carried out at the ESRF micro-fluorescence, imaging and diffraction beamline (ID22). The experimental topograms and numerical simulations show that the image contrast can be explained in terms of a phase shift of the polarizability coefficient, chi(h), in the domain-inverted region relative to the non-inverted part. This phase shift, 1.72 pi, was found to be equivalent to the reflection, 00 (6) over bar, from the domain-inverted part of the structure rather than to the reflection, 006, from the non-inverted part. The numerical simulation shows that the width of the transition region between inverted and non-inverted domains (domain walls) is 0.3 mu m.
Item Type: | Conference Item (UNSPECIFIED) | ||||
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Subjects: | Q Science > QC Physics | ||||
Journal or Publication Title: | JOURNAL OF PHYSICS D-APPLIED PHYSICS | ||||
Publisher: | IOP PUBLISHING LTD | ||||
ISSN: | 0022-3727 | ||||
Official Date: | 21 May 1999 | ||||
Dates: |
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Volume: | 32 | ||||
Number: | 10A Sp. Iss. SI | ||||
Number of Pages: | 6 | ||||
Page Range: | A160-A165 | ||||
Publication Status: | Published | ||||
Title of Event: | 4th Biennial Conference on High Resolution X-ray Diffraction and Topography (XTOP 98) | ||||
Location of Event: | UNIV DURHAM, DURHAM, ENGLAND | ||||
Date(s) of Event: | SEP 09-11, 1998 |
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