Higher-order laue-zone diffraction patterns obtained by a hollow-cone electron beam

Michiyoshi Tanaka, Hiroto Takayoshi, Masami Terauchi, Yukihito Kondo, Katsuyoshi Ueno, Yoshiyasu Harada

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)

Abstract

It is clarified that the higher-order Laue-zone pattern obtained by a hollow-cone electron beam (HCB-HOLZ patterns) is a three-dimensional wide-angle whole pattern (3d-WAWP). The intensity relations between the HCB-HOLZ pattern and the zone-axis convergent-beam pattern (ZAP) are clarified in detail. The advantages of the HCB-HOLZ pattern for crystal symmetry determination are described. Some of the advantages are demonstrated by experiment on real crystals. The annular aperture method to obtain HCB-HOLZ patterns is tested. The patterns obtained by this method are shown and compared with those obtained by the electrical method.

Original languageEnglish
Pages (from-to)195-202
Number of pages8
JournalJournal of Electron Microscopy
Volume33
Issue number3
Publication statusPublished - 1984 Dec 1

Keywords

  • Convergent-beam electron diffraction (CBED)
  • HOLZ pattern
  • Hollow-cone beam
  • Point and space group determination

ASJC Scopus subject areas

  • Instrumentation

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