Surface Convergent-Beam Diffraction for Characterization and Symmetry Determination

  • J. A. Eades
  • M. D. Shannon
Part of the NATO ASI Series book series (NSSB, volume 188)


This paper is concerned with the diffraction of electrons of high energy at near grazing incidence onto the surface of a crystalline specimen. This is the situation normally known as RHEED (reflection high energy electron diffration). However, it particularly addresses the case when the illumination is focused to a small spot on the specimen, with a convergence angle that is comparable with the Bragg angle. It is not normally possible to achieve this in a traditional RHEED apparatus fitted, say, to a UHV epitaxy system and the experiments referred to here will normally be performed in a transmission electron microscope.


Zone Axis Reflection High Energy Electron Diffraction Transmission Electron Diffraction Ewald Sphere Laue Zone 
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  1. Buxton, B. F. Eades, J. A. Steeds, J. W., and Rackham, G. M., 1976, The symmetry of electron diffraction zone axis patterns, Phil.Trans. 281:171–194.ADSCrossRefGoogle Scholar
  2. Gjonnes, J. and Moodie, A. F., 1965, Extinction conditions in the dynamical theory of electron diffraction, Acta Cryst., 19:67.CrossRefGoogle Scholar
  3. Eades, J. A., Shannon, M. D., and Buxton, B. F., 1983, Crystal symmetry from electron diffration, Scanning Electron Microscopy III: 1051–1060.Google Scholar
  4. Hernandez-Calderon, I and Höchst, H., 1983, New method for the analysis of reflection high-energy electron diffraction: α-Sn (001) and InSb (001) surfaces, Fhys.Rev.B., 27:4961–4965.ADSCrossRefGoogle Scholar
  5. Holloway, S. and Beeby, J. L., 1978, The origins of streaked intensity distributions in reflection high energy electron diffraction, J.Phys.C, 11:L247–L251.ADSCrossRefGoogle Scholar
  6. International Tables for X-ray Crystallography, Vol. 1. 1969. International Union of Crystallography, Kynoch press, Birmingham.Google Scholar
  7. Mochel, M. E., Masel, R. I., and Mochel, J. M., 1986, A microdiffraction study of Os10C(CO)24 2 in the scanning transmission electron microscope, Proceedings EMSA 696–697.Google Scholar
  8. Shannon, M. D., Eades, J. A., Meichle, M. E., Turner, P. S., and Buxton, B. F., 1984, Crystal surface symmetry from zone-axis patterns in reflection high-energy-electron diffraction, Phy s.Rev.Lett. 53:2125–2128.ADSCrossRefGoogle Scholar
  9. Shannon, M. D., Eades, J. A., Meichle, M. E., and Turner, P. S., 1985, Zone-axis patterns in reflection high-energy electron diffraction: A family of new techniques for surface characterization, Ultramlcroscopy, 16:175–192.CrossRefGoogle Scholar
  10. Shannon, M. D., Eades, J. A., and Buxton, B. F., 1986, The symmetry of zone-axis patterns in reflection high-energy electron diffraction, EMAG ‘85 10P Conference Series No. 78:53–54.Google Scholar
  11. Steeds, J. A., 1979, Convergent-beam electron diffraction in: “Introduction to Analytical Electron Microscopy, “J. J. Hren, J. I. Goldstein and D. C. Joy, eds., Plenum, New York.Google Scholar
  12. Tanka, M. and Terauchi, M., 1985, “Convergent-Beam Electron Diffraction, “JE0L, Tokyo.Google Scholar
  13. 1.
    M. Tanaka, H. Takayoshi, M. Terauchi, Y. Rondo, K. Ueno, and Y. Harada, Higher-order Laue-zone patterns obtained by a hollow-cone electron beam, J.Electron Microsc., 33:195–202.Google Scholar

Copyright information

© Plenum Press, New York 1988

Authors and Affiliations

  • J. A. Eades
    • 1
  • M. D. Shannon
    • 1
    • 2
  1. 1.Center for Microanalysis of Materials, Materials Research LaboratoryUniversity of Illinois at Urbana-ChampaignUrbanaUSA
  2. 2.ICIRuncorn, CheshireUK

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