The use of through focus exit wave reconstruction in the structure determination of several intermetallic superconductors

H. W. Zandbergen, D. Tang, J. Jansen, R. J. Cava

Research output: Contribution to journalArticle

23 Scopus citations

Abstract

The feasibility of the use of the through focus exit wave reconstruction method to determine structures of inorganic compounds is investigated. To illustrate the potential of the method recent structure determinations of several intermetallic compounds, e.g. YPd2B2C, LuNiBC, Lu4Ni2B3C4 and ThPdxB6-2x are discussed. It is shown that combination of the amplitude and phase information of the exit waves at various specimen thicknesses allows one to determine the positions of all atoms. Whereas the light atoms can be best distinguished in the phase image of a somewhat thicker part of a crystal, the heavy atoms can be observed most reliably in the amplitude part. In particular the change of the exit wave with thickness was found to be very useful in the determination of the presence of light atoms.

Original languageEnglish (US)
Pages (from-to)231-247
Number of pages17
JournalUltramicroscopy
Volume64
Issue number1-4
DOIs
StatePublished - Aug 1996
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Instrumentation

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