Contrast of Surface Steps and Dislocations under Resonance, Non-Resonance, Bragg, and Non-Bragg Conditions
Reflection high energy electron diffraction (RHEED) and its extension, reflection electron microcsopy (REM) have been used extensively for studying the atomic structure of crystal surfaces. The Important features of REM are that surface steps as low as one atom high can be observed in real space with strong contrast and high spatial resolution. Other surface structures such as reconstructions, dislocations, stacking faults, etc., have also been observed on surfaces of bulk crystals with minimal preparation.
KeywordsBurger Vector Resonance Condition Screw Dislocation Reflection High Energy Electron Diffraction Atomic Step
Unable to display preview. Download preview PDF.
- 2.Yagi, K. Takayanagi, K., and Honjo, G. 1982, in: “Crystals, Growth, Properties, and Applications 7”, Springer-Verlag, Berlin pp. 47–74.Google Scholar
- 6.S. Kikuchi and S. Nakagawa, Sci.Pap.Inst.Phys.& Chem. Res., 21:256 (1933).Google Scholar
- 7.S. Miyake and K. Hayakawa, Acta Cryst., A26:60 (1970).Google Scholar
- 10.Tung Hsu, in: “Proceedings of the XIth International Congress on Electron Microscopy,” Kyoto, pp. 85–86 (1986).Google Scholar
- 12.L.-M. Peng and J. M. Cowley, Acta Cryst. A42:545 (1986).Google Scholar
- 15.Tung Hsu, Ph.D. Dissertation, Arizona State University, (1983).Google Scholar
- 16.Tung Hsu, Norelco Reporter, 31:1EM 1, (1984).Google Scholar