Atomic imaging of Ba0.6K0.4BiO3 using low-dose techniques

J. P. Zhang*, Y. Y. Wang, R. Ai, C. E. Platt, Y. Zhang, D. L. Shi, D. C. Hinks, L. D. Marks

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

Atomic resolution images of Ba0.6K0.4BiO3 have been obtained at electron-dose levels of 102 e-2 using a slow-scan CCD camera on a high-resolution electron microscope; at this dose level electron-beam damage can be avoided. The superconducting material is a clean perovskite without evidence for any distortions such as charge-density waves. At higher dose levels modulations appear which, from measurements of the desorbing species under low-energy electron radiation, are due to ionization damage and loss of oxygen.

Original languageEnglish (US)
Pages (from-to)191-194
Number of pages4
JournalPhysica C: Superconductivity and its applications
Volume219
Issue number1-2
DOIs
StatePublished - Jan 1 1994

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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