The structure of Y-Al13-xCo4 (x = 0.8) analyzed by single crystal X-ray diffraction coupled with anomalous X-ray scattering

Kazumasa Sugiyama; Michiyo Genba; Kenji Hiraga; Yoshio Waseda

doi:10.1016/j.jallcom.2009.11.117

The structure of Y-Al_13-xCo₄ (x = 0.8) analyzed by single crystal X-ray diffraction coupled with anomalous X-ray scattering

Kazumasa Sugiyama, Michiyo Genba, Kenji Hiraga, Yoshio Waseda

IMR - Materials Development Division

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

8 Citations (Scopus)

Abstract

The structure of Y-Al_13-xCo₄ (x = 0.8) has been analyzed by single crystal X-ray diffraction: space group C2/m (No.12), a = 17.0525 (20) Å, b = 4.1059(6) Å, c = 7.5047(9) Å, β = 116.01(1)°. Y-Al_13-0.8Co₄ is isostructural with a ternary Y-Al_13-x(Co,Ni)₄ and crystallized at the Al-poor region close to Al₁₃Co₄. The distribution of Co was also confirmed by anomalous X-ray scattering (AXS) at Co K absorption edge. Present analysis revealed the Co distribution at Co(1) and Co(2) sites, only, by suggesting unique pentagonal atomic columns with a period of 4 Å different from that observed in Al₁₁Co₄.

Original language	English
Pages (from-to)	98-101
Number of pages	4
Journal	Journal of Alloys and Compounds
Volume	494
Issue number	1-2
DOIs	https://doi.org/10.1016/j.jallcom.2009.11.117
Publication status	Published - 2010 Apr 2

Keywords

Al-Co system
Anomalous X-ray scattering
Approximant
Crystal structure
Y-phase

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10.1016/j.jallcom.2009.11.117

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@article{05e3572d34bb40eea4019259dbf378fd,

title = "The structure of Y-Al13-xCo4 (x = 0.8) analyzed by single crystal X-ray diffraction coupled with anomalous X-ray scattering",

abstract = "The structure of Y-Al13-xCo4 (x = 0.8) has been analyzed by single crystal X-ray diffraction: space group C2/m (No.12), a = 17.0525 (20) {\AA}, b = 4.1059(6) {\AA}, c = 7.5047(9) {\AA}, β = 116.01(1)°. Y-Al13-0.8Co4 is isostructural with a ternary Y-Al13-x(Co,Ni)4 and crystallized at the Al-poor region close to Al13Co4. The distribution of Co was also confirmed by anomalous X-ray scattering (AXS) at Co K absorption edge. Present analysis revealed the Co distribution at Co(1) and Co(2) sites, only, by suggesting unique pentagonal atomic columns with a period of 4 {\AA} different from that observed in Al11Co4.",

keywords = "Al-Co system, Anomalous X-ray scattering, Approximant, Crystal structure, Y-phase",

author = "Kazumasa Sugiyama and Michiyo Genba and Kenji Hiraga and Yoshio Waseda",

note = "Funding Information: This research was partially supported by Grant-in-Aid for Scientific Research (B) (20340147) from the Japan Society for the Promotion of Science (JSPS) . The authors wish to express their gratitude to Dr. M. Tanaka, Institute of Materials Structure Science, High Energy Accelerator Research Organization, Tsukuba, Japan, for his help on the AXS measurements (Proposal No.2000G028). ",

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doi = "10.1016/j.jallcom.2009.11.117",

language = "English",

volume = "494",

pages = "98--101",

journal = "Journal of Alloys and Compounds",

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T1 - The structure of Y-Al13-xCo4 (x = 0.8) analyzed by single crystal X-ray diffraction coupled with anomalous X-ray scattering

AU - Sugiyama, Kazumasa

AU - Genba, Michiyo

AU - Hiraga, Kenji

AU - Waseda, Yoshio

N1 - Funding Information: This research was partially supported by Grant-in-Aid for Scientific Research (B) (20340147) from the Japan Society for the Promotion of Science (JSPS) . The authors wish to express their gratitude to Dr. M. Tanaka, Institute of Materials Structure Science, High Energy Accelerator Research Organization, Tsukuba, Japan, for his help on the AXS measurements (Proposal No.2000G028).

PY - 2010/4/2

Y1 - 2010/4/2

N2 - The structure of Y-Al13-xCo4 (x = 0.8) has been analyzed by single crystal X-ray diffraction: space group C2/m (No.12), a = 17.0525 (20) Å, b = 4.1059(6) Å, c = 7.5047(9) Å, β = 116.01(1)°. Y-Al13-0.8Co4 is isostructural with a ternary Y-Al13-x(Co,Ni)4 and crystallized at the Al-poor region close to Al13Co4. The distribution of Co was also confirmed by anomalous X-ray scattering (AXS) at Co K absorption edge. Present analysis revealed the Co distribution at Co(1) and Co(2) sites, only, by suggesting unique pentagonal atomic columns with a period of 4 Å different from that observed in Al11Co4.

AB - The structure of Y-Al13-xCo4 (x = 0.8) has been analyzed by single crystal X-ray diffraction: space group C2/m (No.12), a = 17.0525 (20) Å, b = 4.1059(6) Å, c = 7.5047(9) Å, β = 116.01(1)°. Y-Al13-0.8Co4 is isostructural with a ternary Y-Al13-x(Co,Ni)4 and crystallized at the Al-poor region close to Al13Co4. The distribution of Co was also confirmed by anomalous X-ray scattering (AXS) at Co K absorption edge. Present analysis revealed the Co distribution at Co(1) and Co(2) sites, only, by suggesting unique pentagonal atomic columns with a period of 4 Å different from that observed in Al11Co4.

KW - Al-Co system

KW - Anomalous X-ray scattering

KW - Approximant

KW - Crystal structure

KW - Y-phase

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ER -

The structure of Y-Al_13-xCo₄ (x = 0.8) analyzed by single crystal X-ray diffraction coupled with anomalous X-ray scattering

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Keywords

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