Abstract
In the last decade, the use of transmission electron microscopes for surface imaging in the reflection mode has been shown to have considerable potential as a means for studying surfaces. Many REM (Reflection Electron Microscopy) studies have been done as reviewed recently by Cowley and Yagi. However, due to the lack of success with clean and flat single-crystal surface preparation technique, the surface studies of less inert metals, such as copper single crystal, have not been reported. The normal method of forming spherical platinum or gold single crystal by simply melting the end of platinum or gold thin wire with an acetylene-oxygen flame in air for REM observation is difficult here. The formation of flat copper surfaces occurs during the well-controlled crystallization process and is sensitively influenced by its physical and chemical properties. This paper reports a new method of overcoming these difficulties in the copper single crystal preparation. Observations of the samples have been made by REM and RHEED (Reflection High Energy Elecrton Diffraction).
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