HIGH-RESOLUTION IMAGES OF BENT CRYSTALS HAVING RUTILE-TYPE STRUCTURES: TIN DIOXIDE.

L. A. Bursill, A. Pring, David Smith, M. D. Shannon

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

High-resolution images of SnO//2 crystals, oriented into the left bracket 001 right bracket zone, show 4 multiplied by (times) 7 multiplied by 4 multiplied by (times) 7 A**2 detail produced by 100 and 010 reflections. Similar obtained are obtained at both 200 and 500 kV. Since these reflections are both kinematically and dynamically forbidden, for symmetrical zone orientations, the image contract is not predicted using usually-acceptable computer simulation technqiues. On the other hand convergent-beam diffraction patterns are quite consistent with the expectations of dynamical scattering theory, assuming the accepted structure and space group. It is suggested that the apparently anomalous behavior of the images is due to breakdown in symmetry caused by elastic bending, when the screw-axis operations, responsible for extinction of 100 and 010, will be lost.

Original languageEnglish (US)
Pages (from-to)771-789
Number of pages19
JournalPhilosophical Magazine A: Physics of Condensed Matter, Structure, Defects and Mechanical Properties
Volume45
Issue number5
StatePublished - May 1982
Externally publishedYes

Fingerprint

Tin dioxide
Image resolution
dioxides
rutile
tin
brackets
Crystals
high resolution
elastic bending
Diffraction patterns
crystals
screws
Scattering
Computer simulation
extinction
diffraction patterns
computerized simulation
breakdown
symmetry
scattering

ASJC Scopus subject areas

  • Materials Science(all)
  • Electronic, Optical and Magnetic Materials
  • Metals and Alloys
  • Physics and Astronomy (miscellaneous)
  • Condensed Matter Physics

Cite this

HIGH-RESOLUTION IMAGES OF BENT CRYSTALS HAVING RUTILE-TYPE STRUCTURES : TIN DIOXIDE. / Bursill, L. A.; Pring, A.; Smith, David; Shannon, M. D.

In: Philosophical Magazine A: Physics of Condensed Matter, Structure, Defects and Mechanical Properties, Vol. 45, No. 5, 05.1982, p. 771-789.

Research output: Contribution to journalArticle

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