Application of white beam synchrotron radiation topography to the analysis of twins

G. D. Yao; M. Dudley; S. Y. Hou; R. DiSalvo

doi:10.1016/0168-583X(91)96057-R

Application of white beam synchrotron radiation topography to the analysis of twins

G. D. Yao
, M. Dudley
, S. Y. Hou
, R. DiSalvo

Materials Science and Engineering

Stony Brook University

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

5 Scopus citations

Abstract

White beam synchrotron X-ray topography (WBSXRT) has been used to characterize room temperature twinning structures in lanthanum gallate and P-terphenyl single crystals. Both Laue and Bragg geometries are utilized to reveal the nature of twinning in LaGaO₃. The geometric relationships between the twin related domains and the directions of the corresponding diffracted beams are used to establish the presence of reflection twins on (11̄2)_orth, (11̄2̄)_orth and (11̄0)_orth planes. Also described is the application of WBSXRT to reveal the twin law in the solution grown organic crystal p-terphenyl. The active twin plane was unambiguously determined to be (201) by determination of the orientation relationship between parent and twinned structures through Laue pattern analysis. Twin lamellae with the same twin plane were also observed. For both materials, no radiation damage was observed throughout the experiments. These results demonstrate the usefulness of WBSXRT for the study of twins.

Original language	English
Pages (from-to)	400-404
Number of pages	5
Journal	Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume	56-57
Issue number	PART 1
DOIs	https://doi.org/10.1016/0168-583X(91)96057-R
State	Published - May 1 1991

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title = "Application of white beam synchrotron radiation topography to the analysis of twins",

abstract = "White beam synchrotron X-ray topography (WBSXRT) has been used to characterize room temperature twinning structures in lanthanum gallate and P-terphenyl single crystals. Both Laue and Bragg geometries are utilized to reveal the nature of twinning in LaGaO3. The geometric relationships between the twin related domains and the directions of the corresponding diffracted beams are used to establish the presence of reflection twins on (1{\=1}2)orth, (1{\=1}{\=2})orth and (1{\=1}0)orth planes. Also described is the application of WBSXRT to reveal the twin law in the solution grown organic crystal p-terphenyl. The active twin plane was unambiguously determined to be (201) by determination of the orientation relationship between parent and twinned structures through Laue pattern analysis. Twin lamellae with the same twin plane were also observed. For both materials, no radiation damage was observed throughout the experiments. These results demonstrate the usefulness of WBSXRT for the study of twins.",

author = "Yao, \{G. D.\} and M. Dudley and Hou, \{S. Y.\} and R. DiSalvo",

year = "1991",

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doi = "10.1016/0168-583X(91)96057-R",

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T1 - Application of white beam synchrotron radiation topography to the analysis of twins

AU - Yao, G. D.

AU - Dudley, M.

AU - Hou, S. Y.

AU - DiSalvo, R.

PY - 1991/5/1

Y1 - 1991/5/1

N2 - White beam synchrotron X-ray topography (WBSXRT) has been used to characterize room temperature twinning structures in lanthanum gallate and P-terphenyl single crystals. Both Laue and Bragg geometries are utilized to reveal the nature of twinning in LaGaO3. The geometric relationships between the twin related domains and the directions of the corresponding diffracted beams are used to establish the presence of reflection twins on (11̄2)orth, (11̄2̄)orth and (11̄0)orth planes. Also described is the application of WBSXRT to reveal the twin law in the solution grown organic crystal p-terphenyl. The active twin plane was unambiguously determined to be (201) by determination of the orientation relationship between parent and twinned structures through Laue pattern analysis. Twin lamellae with the same twin plane were also observed. For both materials, no radiation damage was observed throughout the experiments. These results demonstrate the usefulness of WBSXRT for the study of twins.

AB - White beam synchrotron X-ray topography (WBSXRT) has been used to characterize room temperature twinning structures in lanthanum gallate and P-terphenyl single crystals. Both Laue and Bragg geometries are utilized to reveal the nature of twinning in LaGaO3. The geometric relationships between the twin related domains and the directions of the corresponding diffracted beams are used to establish the presence of reflection twins on (11̄2)orth, (11̄2̄)orth and (11̄0)orth planes. Also described is the application of WBSXRT to reveal the twin law in the solution grown organic crystal p-terphenyl. The active twin plane was unambiguously determined to be (201) by determination of the orientation relationship between parent and twinned structures through Laue pattern analysis. Twin lamellae with the same twin plane were also observed. For both materials, no radiation damage was observed throughout the experiments. These results demonstrate the usefulness of WBSXRT for the study of twins.

UR - https://www.scopus.com/pages/publications/25344460535

U2 - 10.1016/0168-583X(91)96057-R

DO - 10.1016/0168-583X(91)96057-R

M3 - Article

AN - SCOPUS:25344460535

SN - 0168-583X

VL - 56-57

SP - 400

EP - 404

JO - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms

JF - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms

IS - PART 1

ER -

Application of white beam synchrotron radiation topography to the analysis of twins

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