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

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

Research output: Contribution to journalArticle

4 Citations (Scopus)

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 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.

Original languageEnglish
Pages (from-to)712-715
Number of pages4
JournalJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Volume46
Issue number2
DOIs
Publication statusPublished - 2007 Feb 8

Keywords

  • Composite structure
  • Domain structure
  • Electron diffraction
  • High-resolution image
  • Ion exchange
  • Thermoelectric compound

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

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