Microstructural analysis of obliquely evaporated Co-CoO tape using TEM and EELS

H. Tachikawa, Yasukazu Murakami, T. Ito, Y. Iwasaki, D. Shindo

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

Microstructure of Co-CoO obliquely evaporated tape was studied by energy-filtered electron microscopy combined with high-resolution electron microscopy. Elemental mapping with electron energy-loss spectroscopy revealed that the specimen had a columnar internal structure, in which two types of columns, i.e. Co-rich and O-rich ones, were present. They were identified to be the columns containing mainly Co and CoO, respectively, by image processing of high-resolution electron microscope images. Although the size of Co particles was small, i.e. 5-20 nm, several particles gathered to form clusters within each Co-rich column. The c-axis of the particles inside the cluster was almost parallel to the longitudinal direction of the Co-rich column.

Original languageEnglish
Pages (from-to)349-355
Number of pages7
JournalNippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals
Volume65
Issue number5
DOIs
Publication statusPublished - 2001

Keywords

  • Electron energy-loss spectroscopy
  • Elemental mapping
  • Energy filter
  • High-resolution electron microscopy
  • Magnetic materials

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanics of Materials
  • Metals and Alloys
  • Materials Chemistry

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