Crystal Structure of Sr0.35CoO2 Compound Studied by High-Resolution Electron Microscopy
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概要
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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., $b_{1}=2.80$ Å for the CoO2 sheets and $b_{2}=8.41$ Å for the intercalated Sr layers, showing that the axial $b_{1}/b_{2}$ 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.
- Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
- 2007-02-15
著者
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KAJITANI Tsuyoshi
Core Research for Evolutional Science and Technology, Japan Science and Technology Agency
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Miyazaki Yuzuru
Core Research For Evolutional Science And Technology Japan Science And Technology Agency:department
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Hasegawa Yuh-ki
Department of Applied Physics, Graduate School of Engineering, Tohoku University, Sendai 980-8579, Japan
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Kajitani Tsuyoshi
Core Research for Evolutional Science and Technology, Japan Science and Technology Agency, Tokyo 103-0027, Japan
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Yubuta Kunio
Core Research for Evolutional Science and Technology, Japan Science and Technology Agency, Tokyo 103-0027, Japan
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Miyazaki Yuzuru
Core Research for Evolutional Science and Technology, Japan Science and Technology Agency, Tokyo 103-0027, Japan
関連論文
- High-Resolution Electron Microscopy Study of [(Ca,Bi)_2CoO_3]_CoO_2(Condensed matter: structure and mechanical and thermal properties)
- Discommensurate Structure in [(Ca_Sr_)_2CoO_3]_CoO_2(Condensed matter: structure and mechanical and thermal properties)
- Crystal Structure of Sr0.35CoO2 Compound Studied by High-Resolution Electron Microscopy