X-ray determination of incommensurate superlattices in K2SeO4 and (NH4)2BeF4

Seishi Kudo

doi:10.1143/JJAP.21.255

X-ray determination of incommensurate superlattices in K₂SeO₄ and (NH₄)₂BeF₄

Seishi Kudo

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

17 Citations (Scopus)

Abstract

Incommensurate superlattice reflections have been observed by X-ray diffractometry in K₂SeO₄ and (NH₄)₂BeF₄. A simple method is proposed based on the ω-scan technique. This is free from systematic errors, and is not affected by the precision of the lattice constant determination. The incommensurate superlattice parameter of K₂SeO₄ measured using this procedure is in agreement with that measured using neutron scattering. The incommensurate structure of (NH₄)₂BeF₄ is elucidated for the first time by the present method.

Original language	English
Pages (from-to)	255-258
Number of pages	4
Journal	Japanese journal of applied physics
Volume	21
Issue number	2 R
DOIs	https://doi.org/10.1143/JJAP.21.255
Publication status	Published - 1982 Feb
Externally published	Yes

ASJC Scopus subject areas

Engineering(all)
Physics and Astronomy(all)

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abstract = "Incommensurate superlattice reflections have been observed by X-ray diffractometry in K2SeO4 and (NH4)2BeF4. A simple method is proposed based on the ω-scan technique. This is free from systematic errors, and is not affected by the precision of the lattice constant determination. The incommensurate superlattice parameter of K2SeO4 measured using this procedure is in agreement with that measured using neutron scattering. The incommensurate structure of (NH4)2BeF4 is elucidated for the first time by the present method.",

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AB - Incommensurate superlattice reflections have been observed by X-ray diffractometry in K2SeO4 and (NH4)2BeF4. A simple method is proposed based on the ω-scan technique. This is free from systematic errors, and is not affected by the precision of the lattice constant determination. The incommensurate superlattice parameter of K2SeO4 measured using this procedure is in agreement with that measured using neutron scattering. The incommensurate structure of (NH4)2BeF4 is elucidated for the first time by the present method.

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JF - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes

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X-ray determination of incommensurate superlattices in K₂SeO₄ and (NH₄)₂BeF₄

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