Direct x-ray synchrotron imaging of strains at 180° domain walls in congruent LiNbO3 and LiTaO3 crystals

Sungwon Kim; Venkatraman Gopalan; B. Steiner

doi:10.1063/1.1312854

Direct x-ray synchrotron imaging of strains at 180° domain walls in congruent LiNbO₃ and LiTaO₃ crystals

Sungwon Kim, Venkatraman Gopalan, B. Steiner

Research output: Contribution to journal › Article › peer-review

53 Scopus citations

Abstract

We present direct evidence for wide regions of strain on length scales of many micrometers associated with 180° domain walls in congruent LiNbO₃ and LiTaO₃ crystals. Strain contrast in symmetric high-resolution diffraction images of these crystals in Bragg geometry arises in part from curvature in the basal planes (0001) across a domain wall as well as from lateral variation in the lattice spacing of the basal planes extending over many micrometers in going across a wall.

Original language	English (US)
Pages (from-to)	2051-2053
Number of pages	3
Journal	Applied Physics Letters
Volume	77
Issue number	13
DOIs	https://doi.org/10.1063/1.1312854
State	Published - Sep 25 2000

All Science Journal Classification (ASJC) codes

Physics and Astronomy (miscellaneous)

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10.1063/1.1312854

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title = "Direct x-ray synchrotron imaging of strains at 180° domain walls in congruent LiNbO3 and LiTaO3 crystals",

abstract = "We present direct evidence for wide regions of strain on length scales of many micrometers associated with 180° domain walls in congruent LiNbO3 and LiTaO3 crystals. Strain contrast in symmetric high-resolution diffraction images of these crystals in Bragg geometry arises in part from curvature in the basal planes (0001) across a domain wall as well as from lateral variation in the lattice spacing of the basal planes extending over many micrometers in going across a wall.",

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AU - Gopalan, Venkatraman

AU - Steiner, B.

PY - 2000/9/25

Y1 - 2000/9/25

N2 - We present direct evidence for wide regions of strain on length scales of many micrometers associated with 180° domain walls in congruent LiNbO3 and LiTaO3 crystals. Strain contrast in symmetric high-resolution diffraction images of these crystals in Bragg geometry arises in part from curvature in the basal planes (0001) across a domain wall as well as from lateral variation in the lattice spacing of the basal planes extending over many micrometers in going across a wall.

AB - We present direct evidence for wide regions of strain on length scales of many micrometers associated with 180° domain walls in congruent LiNbO3 and LiTaO3 crystals. Strain contrast in symmetric high-resolution diffraction images of these crystals in Bragg geometry arises in part from curvature in the basal planes (0001) across a domain wall as well as from lateral variation in the lattice spacing of the basal planes extending over many micrometers in going across a wall.

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JF - Applied Physics Letters

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Direct x-ray synchrotron imaging of strains at 180° domain walls in congruent LiNbO₃ and LiTaO₃ crystals

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