Diamond possesses a tetrahedral structure, characterized by each carbon atom being covalently bonded to four others. At the surface of single crystal diamonds, known as "end carbon," the surface structure deviates from the bulk structure, leading to strain. Surface characterization techniques, particularly Auger Spectroscopy, reveal that the diamond surface exhibits a distorted face-centered cubic (FCC) structure, which differs significantly from the internal arrangement of carbon atoms in the bulk diamond.
PREREQUISITESMaterials scientists, chemists, and researchers focused on crystallography and surface science will benefit from this discussion, particularly those studying the properties and behaviors of diamond and other carbon allotropes.