In-situ Annular Bright-Field Imaging of Structural Transformation of Spinel LiV2O4 Crystals into Defective LixV2O4
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概要
- 論文の詳細を見る
Thin LiV2O4 crystals with a spinel structure were observed by annular bright-field (ABF) imaging in which the contrast of lithium, vanadium, and oxygen columns varies depending on the number of ions in each column. On intense electron beam irradiation, lithium ions started to be displaced from the tetrahedral sites, which induced the redistribution of vanadium ions at octahedral sites. Consequently, the spinel structure was transformed into a defective NaCl structure. In-situ ABF imaging of thin specimens is a promising method for investigating local structural transformations accompanied by the displacement of lithium ions.
- 2012-02-25
著者
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Takayanagi Kunio
Department Of Condense Matter Physics Tokyo Institute Of Technology
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Oshima Yoshifumi
Research Center For Ultra Hvem Osaka University
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Tanishiro Yasumasa
Department of Material Science and Engineering, Tokyo Institute of Technology, Meguro, Tokyo 152-8551, Japan
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Lee Soyeon
Department of Material Science and Engineering, Tokyo Institute of Technology, Meguro, Tokyo 152-8551, Japan
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Niitaka Seiji
Magnetic Materials Laboratory, RIKEN, Wako, Saitama 351-0198, Japan
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Takagi Hidenori
Magnetic Materials Laboratory, RIKEN, Wako, Saitama 351-0198, Japan
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Oshima Yoshifumi
Research Center for Ultra HVEM, Osaka University, Ibaraki, Osaka 567-0047, Japan
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Oshima Yoshifumi
Research Center for Ultra High-Voltage Electron Microscopy, Osaka University, Ibaraki, Osaka 567-0047, Japan
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OSHIMA Yoshifumi
Research Center for Ultra High-Voltage Electron Microscopy, Osaka University
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