Crystal structure of Sr0.35CoO2 compound studied by high-resolution electron microscopy

Kunio Yubuta; Yuh Ki Hasegawa; Yuzuru Miyazaki; Tsuyoshi Kajitani

doi:10.1143/JJAP.46.712

Crystal structure of Sr_0.35CoO₂ compound studied by high-resolution electron microscopy

Kunio Yubuta, Yuh Ki Hasegawa, Yuzuru Miyazaki, Tsuyoshi Kajitani

工学研究科・応用物理学専攻

研究成果: Article › 査読

4 被引用数 (Scopus)

抄録

The modulated crystal structure of Sr_0.35CoO₂ is studied by electron diffraction measurement and high-resolution electron microscopy. Sr_0.35CoO₂ consists of two interpenetrating subsystems of CoO₂ sheets and intercalated Sr layers. Both subsystems have common a- and c-axes with a = 4.80 Å and c = 11.33 Å. The two subsystems of Sr_0.35CoO₂ are mutually commensurated parallel to the b-axis, i.e., b₁ = 2.80 Å for the CoO ₂ sheets and b₂ = 8.41 Å for the intercalated Sr layers, showing that the axial b₁/b₂ ratio is 1/3, i.e., rational. The high-resolution images taken with the incident electron beams parallel to the a-, b-, and c-axes clearly exhibit characteristic atomic arrangements.

本文言語	English
ページ（範囲）	712-715
ページ数	4
ジャーナル	Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
巻	46
号	2
DOI	https://doi.org/10.1143/JJAP.46.712
出版ステータス	Published - 2007 2月 8

ASJC Scopus subject areas

工学（全般）
物理学および天文学（全般）

文献へのアクセス

10.1143/JJAP.46.712

他のファイルとリンク

引用スタイル

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title = "Crystal structure of Sr0.35CoO2 compound studied by high-resolution electron microscopy",

abstract = "The modulated crystal structure of Sr0.35CoO2 is studied by electron diffraction measurement and high-resolution electron microscopy. Sr0.35CoO2 consists of two interpenetrating subsystems of CoO2 sheets and intercalated Sr layers. Both subsystems have common a- and c-axes with a = 4.80 {\AA} and c = 11.33 {\AA}. The two subsystems of Sr0.35CoO2 are mutually commensurated parallel to the b-axis, i.e., b1 = 2.80 {\AA} for the CoO 2 sheets and b2 = 8.41 {\AA} for the intercalated Sr layers, showing that the axial b1/b2 ratio is 1/3, i.e., rational. The high-resolution images taken with the incident electron beams parallel to the a-, b-, and c-axes clearly exhibit characteristic atomic arrangements.",

keywords = "Composite structure, Domain structure, Electron diffraction, High-resolution image, Ion exchange, Thermoelectric compound",

author = "Kunio Yubuta and Hasegawa, {Yuh Ki} and Yuzuru Miyazaki and Tsuyoshi Kajitani",

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AU - Yubuta, Kunio

AU - Hasegawa, Yuh Ki

AU - Miyazaki, Yuzuru

AU - Kajitani, Tsuyoshi

PY - 2007/2/8

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N2 - The modulated crystal structure of Sr0.35CoO2 is studied by electron diffraction measurement and high-resolution electron microscopy. Sr0.35CoO2 consists of two interpenetrating subsystems of CoO2 sheets and intercalated Sr layers. Both subsystems have common a- and c-axes with a = 4.80 Å and c = 11.33 Å. The two subsystems of Sr0.35CoO2 are mutually commensurated parallel to the b-axis, i.e., b1 = 2.80 Å for the CoO 2 sheets and b2 = 8.41 Å for the intercalated Sr layers, showing that the axial b1/b2 ratio is 1/3, i.e., rational. The high-resolution images taken with the incident electron beams parallel to the a-, b-, and c-axes clearly exhibit characteristic atomic arrangements.

AB - The modulated crystal structure of Sr0.35CoO2 is studied by electron diffraction measurement and high-resolution electron microscopy. Sr0.35CoO2 consists of two interpenetrating subsystems of CoO2 sheets and intercalated Sr layers. Both subsystems have common a- and c-axes with a = 4.80 Å and c = 11.33 Å. The two subsystems of Sr0.35CoO2 are mutually commensurated parallel to the b-axis, i.e., b1 = 2.80 Å for the CoO 2 sheets and b2 = 8.41 Å for the intercalated Sr layers, showing that the axial b1/b2 ratio is 1/3, i.e., rational. The high-resolution images taken with the incident electron beams parallel to the a-, b-, and c-axes clearly exhibit characteristic atomic arrangements.

KW - Composite structure

KW - Domain structure

KW - Electron diffraction

KW - High-resolution image

KW - Ion exchange

KW - Thermoelectric compound

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