e-Journal of Surface Science and Nanotechnology
Online ISSN : 1348-0391
ISSN-L : 1348-0391
Conference -ISSS-6-
Surface Imaging by ABF-STEM: Lithium Ions in Diffusion Channel of LIB Electrode Materials
Soyeon LeeYoshifumi OshimaHidetaka SawadaFumio HosokawaEiji OkunishiToshikatsu KaneyamaYukihito KondoYasumasa TanishiroKunio Takayanagi
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2012 Volume 10 Pages 454-458

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Abstract

Lithium ions in LiMn2O4 crystals have been shown observable by using an aberration corrected electron microscope (R005) which has achieved a sub-50 pm resolution. Based on the annular bright-field image of the observed image, surface imaging of a LiMn2O4 crystal is discussed through simulation. The present simulation showed that ABF images with large convergence angles are sensitive to the top surface profile. A vacancy locating at the top surface of the lithium or manganese atomic columns can be observable with contrast reduced by 10-25% from the columns without vacancy. [DOI: 10.1380/ejssnt.2012.454]

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この記事はクリエイティブ・コモンズ [表示 4.0 国際]ライセンスの下に提供されています。
https://creativecommons.org/licenses/by/4.0/deed.ja
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